Other than a few comfort foods, I’ve pretty much put away childish things. Sold off my coin collection years ago. Same for playing FPS games, which, given my year of birth, was never a ‘teen thing’.
Another Lego fan here: I’m 53, F, single, with no kids and a good salary…so I do buy them. 
I never played with them much when I was younger – I was way more into Barbie – but I got really into them two years ago. I display them in my living room (one of the advantages of living alone!). If anyone is curious, my builds and displays can be seen here. Most of my sets are kind of random – they have to mean something to me – but I do have a bit of Star Wars theme going: most recently I built a lil’ mini Death Star, and this weekend I’ll be ordering the TIE fighter.
I do too. I have not however bought a costume since I was about ten. For the past (I think it’s about twenty five years) I have gone to the Henri David Ball. The first time I entered that room was the first time I truly felt I was surrounded by people who loved Halloween as much as I did.
It was not the first time I did not win the costume contest. It was the first time I did not deserve to win.
PB&J. And no man may judge me for it.
I will not buy any brand but Jiff. I prefer Jiff Natural. I usually buy Welche’s grape jelly. Any good brand without too much sugar and that is sold in a squeeze bottle will do though. Potato bread is a bit more expensive than wheat. But I think it is worth it.
Do you work in my office? In our accessible bathroom, which is often used by people who also want some bathroom privacy, someone stocks some old issues of Mad. Definitely better for bathroom browsing than doomscrolling on my phone
Yeah, but CS Lewis wrote kid books, mostly to try to sneak-convert kid readers to Christianity, so his opinion on the matter is suspect to say the least.
Like many in this thread, I still watch cartoons both old and new, and read comics/graphic novels (of certain kinds and genres).
I play some pinball, including the free one that used to come with Windows.
I’m real good at Barrel Of Monkeys, too.
Carnivals and the circus thrill me, with the rides (as long as they don’t turn you upside down), the food, the games of skill and chance, the animals and clowns, and I wish there were still real sideshows.
Speaking of food: I, too, love a good pizza. Also Ball Park All Beef hot dogs, candy bars and salty snacks, fried chicken, cheeseburgers, macaroni and cheese, Coca-Cola (and ginger ale, and fizzy water, and unusually flavored Mexican soda pops), mashed taters, fries, creamy peanut butter sandwiches on white bread WITHOUT JAM OR JELLY, and chocolate cake. And I drink a lot of milk, too.
Still appreciate stuffed animals, will talk to them on occasion when nobody is looking, and sleep with a little Teddy Bear. His name’s Puzzy.
I love animals, especially pets, want some “exotic” pets and a couple of “normal” ones, and when I hit the numbers, I’m gonna have them.
Electric bikes look like lots of fun. Though I haven’t worked up the balls to try one. Like the old song goes, “I’ll ride them one day”.
I grow my hair quite long, dye it red with henna, and wear jeans and t-shirts nearly exclusively. Black ones if I have anything to say about it.
Did I mention that I’m an ace Barrel Of Monkeys player?
I’m 65 and not embarrassed by loving any of those things.
I recently started a lifeguarding class.
Believe I raised the average age of the class, by about 4 years; although I am sure median is still under 20.
I enjoyed teaching swimming 40 years ago, and have decided to do it again in my retirement.
I listen to electronic dance music and follow the scene a little bit.
I play in a band that is many things but rock and roll will never die, man.
I’ve taken up some fine art hobbies in the last two years or so: pen & ink, calligraphy, watercolors. This was not something I saw coming five or more years earlier.
I still have a security blanket. I don’t always sleep with it but often I do. It’s small and can be easily packed for travel. Silk lining is a requirement.
I’m definitely still into stuffed animals, currently camouflaged by having a young son, but his stuffed animal collection came entirely from what I owned before he was born. Lots of sea creatures.
Pediatrician, at 18 month checkup: So what words does he know?
Husband: Um… ball, eating, narwhal…
Pediatrician: …Narwhal?
Husband: My wife. It’s my wife.
Really I’m here to report on my husband’s collection of X-Men figurines. The man is obsessed with the X-Men, always has been. When I first met him, twenty-odd years ago, all he talked about were the X-Men and running. He no longer talks about running. He listens to one of a handful of X-Men podcasts every day while shaving. He doesn’t collect the figures in boxes, he removes them from the boxes and makes creative dioramas out of them. He put Santa hats on them for Christmas. When he was studying for his clinical psychology licensure exam, known as the EPPP, he ordered a bunch of X-Men figurines, and gave them to me to dole out in the order of my choosing as a reward for completing so many hours of study. When he passed his EPPP, I celebrated by taking him to an action figure collector store.
We do all the adult responsibility things, obviously, so we can afford a little childish indulgence here and there.
And I’m no better. I regularly retreat into fantasy worlds of my own making (fiction writer.) I play pretend all the time.
Besides weed?
I really want to play more video games, I believe it’s partly because I’m an adult, and partly because of my TikTok addled brain, but it’s SO difficult for me to commit to games. I’ve always had ADD, so it took a lot as a child as well, I still feel invested in games (specifically Nintendo) I just often take a back-seat while playing them.
Mad is still published. It was ended in 2016 or 17 but simply restarted at #1 a couple of months later.
Cannonballs into the pool?
Blasting the car radio?
Dancing all by myself
Jumping out of a hiding place to scare a loved one✅
Not only being a parent and teacher of teenagers, I deal with teens doing teen things daily.
I’m proud to say that I can be as pissy as the best of them.
But what about Angsty McAngstyface? Can you do that as well as the real teens? Or is teen angst now passé and they’ve moved on to a different form of moodiness?
Angst defines adolescence! It’s well and alive although I never migrated over to whatever platform to share said feelings with the world.
More in spirit of the OP, woe be the puddle that happens to be in my vicinity. There are so few things that are as satisfying as jumping into one.
My teens are far more mature to enjoy that activity and roll their eyes almost as much as when asked to pick up their socks.
I’m not sure if it counts as I have two small children who are really into Lego. Ostensibly we buy the sets or acquire collections of old Lego for the kids to play with and allowed them to create a massive Lego cityscape in our apartment. But I’m finding more and more I’m like “you know what the kids might enjoy…” and doing stuff like using random parts to build a minifig-scale Black Hawk helicopter or anime / Horizon Zero inspired spider-tank.
If my wife tells me that she will be out of town and miss a meal, and I don’t want to cook for one person, I’ll open a can of Chef BoyArDee ravioli and eat the whole thing by myself. (But only if she gives me enough notice so I remember to buy some before she leaves.)
^ Dinty Moore beef stew (but not too often — have you seen the sodium amount in a can?)