As a child I dreamed of owning my own home far from people, DONE! (I grew up in a city and always lived in apartments.)
I wanted a dog, DONE!
I wanted a motor scooter, DONE!
I wanted a personal computer, DONE!
I wanted a way to search for recipes without having tons of cookbooks, DONE!
I wanted a way to carry all my music around with me without all the bulky CDS. Someone invented an IPOD, DONE!
There are more
When I was a teenager, I wanted to be a published author, have horses and teach riding and to have a dog. I am still working on the published author part but I have owned some awesome dogs in the last 40 years and I currently own two horses and give riding lessons. 
I had a dream to sing on Broadway. As it turns out, there is a karaoke bar right on Broadway. My dad and I waited for an hour and a half in that bar, with colds, until we got the chance to sing. Dream 100% accomplished.
All the pets I’ve ever wanted to own I’ve owned (Dog, Cats, Rats, Chickens, Parakeets) except for a reptile. I’m hoping my son will want a reptile some day and we’ll be able to gang up on my husband who thinks they’re icky. Also, the dog I had was my husband’s and was kind of a shitty dog, so I’d like to get a good one some day. Again, hoping it will be “my son’s idea”.
I’ve seen the pyramids at Giza, Victoria Falls, Mt. Kilimanjaro and the Serengeti; chased wild dogs and big cats in Botswana, traveled into Ngorongoro Crater and seen Odupai Gorge. I’ve been boating on the Nile, been to its source and seen King Tut’s tomb. I’ve been in Japan during cherry blossom time. I’ve traveled to nearly every European capital, including the Soviet Bloc countries, and to seven or eight African countries. While I never became an astronomer or an archaeologist (both childhood dreams), these things have filled that gap nicely. Also, it took me 45 years, but I finally found the woman who has been my soul mate for past 20+ years.
I desperately wanted a horse when I was a kid. For a few years I had a job that I hated, in the middle of nowhere - but it paid well and the cost of living was low, and I got my horse. Riding and caring for her kept me sane while I had that job. I’ve long since moved out of the area and sold the horse (couldn’t afford to keep her here), but I have the memories. I hope eventually to have a horse and riding time again.
As a kid, I hated having to argue for every stupid two-bit thing (new shoes, staying up later than usual, having friends over). I no longer have to justify my actions to anyone but myself as long as I accept the consequences thereof. That’s a dream come true.
Hard to say, really. Many of my childhood dreams were pretty impractical, and I figured that out pretty early on many of them.
For example, one of my earliest career dreams was an astronaut. Then I figured out that if I got carsick and seasick that easily, I wasn’t going to manage space.
I also thought it would be awesome to live way out the woods in the middle of Alaska. Actually, I still like that idea some days, but it’s hardly a practical way to live.
I still like the idea of traveling a lot, and have not done that yet… but I keep finding that the idea of traveling is more appealing than actually doing it. It takes very little time in strange places before I start wanting to go home and have a beer on my back deck.
Things I have achieved:
I did write a book and (self) publish it. Not quite as satisfying or profitable as I’d hoped… but it’s done.
I do have a house with a nice back yard, so I have a very good compromise between “out in the woods” “affordable” and “close enough to the grocery store.” I’ve even added the koi pond part of the dream, though it’s still in progress.
I did find and marry my soul mate.
When I was younger, I was terribly uncoordinated, and couldn’t play sports worth damn. I found a list of goals I had written at some point, and one of them was to be a “baseball coach”.
While I never did coach baseball, I had taught sports at a camp for years, and helped many kids learn how to play slightly better. That I thought fulfilled my childhood dream…
There are very few things I wanted to do that I haven’t done, childhood dreams or otherwise. I’d have loved to travel in space, but this has turned out to be impossible. I’d still like to see a really great Aurora Borealis display.
I got to have sex.
I lived in the northeast (although NYC wasn’t what I expected).
I wanted a job with Congress. Didn’t get this one, but I work a few blocks from the Capitol.
I get to take my sons to 2-3 major league games a month during the season.
I’ve gone to MLB playoff games with both my sons.
I’ve played music for pay.
Best of all, I married a beautiful, loving woman who has given me two great kids.
I wanted to be a science fiction writer when I grew up. I remember seeing the first Nebula Anthology and thinking I’d love to be able to join the Science Fiction Writers of America.
I managed to achieve both.
One of them, kinda. Not really in a good way, however.
I met and married a woman who loved me.
And I got to be scientist, too.
I got all the things I didn’t even dare to dream of! Like traveling around the world and having adventures in exotic lands, finding a man who’d want to do the same, an honest, ethical, simple man I could trust with my life. To build a successful, lifelong, loving, stable partnership. To own a small pretty house, in a lovely neighbourhood, and have friends to share it with, and a garden of my own!
As a child, I dreamt of just running away, away from chaos, drama, dysfunction, suburbs! With gypsies, or a circus, or pirates, or a rock band, that part was ever shifting. But the ‘Away, Away!’, part never dissipated.
I surrendered a child to adoption at 16. A decade ago they found me! Again, something I’d never even allowed myself to dare dream about. A grandchild just arrived!
There you have it! Proof that even the dreams you dare not dream can come true!
I grew up in the suburbs. I was bored stupid the entire time. I wanted to live in a big city – I always thought I’d fit in much better, and be much happier, in a place where a lot more things happened. There are some pretty big places on the Pacific coast, but I was much more enamored of the big cities on the Atlantic, where everything old and new was packed together into one small space.
I live in Boston now. I was totally right.
One of the things I used to dream about all the time as a kid was waking up leisurely on Sunday morning without having to worry about church.
Every Sunday morning I praise the lord my dreams came true.
I’m another who dreamed of horses. I got to own 2 in my adult life. I am again horseless, and my dreams are of owning another someday, tho it will likely never happen. 
Full circle, I guess.
I have a loving wife and two great kids…and my wife is the girl I had a huge crush on in 8th grade, so I guess that counts. Since being a family man was really my biggest dream, that works pretty well.
When I was in elementary school I wanted to be an architect…in middle school I wanted to be a mechanical engineer. I’m an electrical engineer, so I’m in the ballpark there.
As a kid, I wanted to find the Magic Toyshop. The kind of store you see in The Twilight Zone- filled with valuable relics, strange odds and ends and wonders galore.
Looking around my apartment a few years ago, I realized my place is the Magic Toyshop! You want obsolete computers and video games? You want relics from Egypt and Pre Columbian America? You want rare toys? You want puzzles? I’ve got it all.
In fact, when my nephew is asked where he wants to go on vacation he invariably replies “I want to go visit Unc Unc’s place”
As a kid, my attention deficit disorder was terrible. I wanted to have the patience and attention span to read long books. I’ve read the entire Dune series (I discount the books written by the son). They average at about a thousand pages.
I wanted to host a children’s television show. I’ve had an idea called The Laboratory Of Professor Von Fun for a few years now. With the help of some friends, we could shoot it, add some CGI and put it on You Tube. Really, only my fear of failure is holding me back.
My dreams are kind of simple. As a kid I dreamed of making an all wood bow from a tree that would outshoot the fancy fiberglass bows the rich kids started showing up in the field with. We would have contests to see who could shoot the furthest and my wood bow would always loose.
I would later become somewhat of an authority on wood bows and go on to break a few distance records.
I didn’t have any specific expectations when I was a kid. My dad was an executive in NYC, made a lot of money which seemed nice. I had an idea that, after college, I would be issued a briefcase and office. Didn’t turn out like that at all. But it’s worked out well.