I’m 24 and three quarters and can’t drive stick, but I think this is a regional thing. AFAIK, automatic transmission is all but non-existent in Europe. When we traveled to Hungary, we tried renting a car. The only automatic one they had was a giant cube van with a wheelchair ramp, which was shocking to say the least!
I’m pretty well rounded in the common skill department, it’s about all I got. I find I’m forever teaching customers and apprentices the most basic things.
How to close a valve. Ball valves mostly.
How to turn on or off a breaker.
Hot and cold water on faucets.
How to roll up cords and hoses.
Very basic tool recognition. That’s a screwdriver, that’s a wrench etc.
The complicated science of things like sweeping, shoveling or raking.
I didn’t drive until I was over 25. However, I started driving a stick within six months.
(People understand when I mention where I lived - good public transportation and really bad drivers.)
How to use a computer at all – searching for books at the library, for example. I’ve showed my uncle (he’s 54) the basics a few times, but without practice, it’s not sticking. He’s not a dumb guy, either, just missed the whole 1990s.
Tie any kind of good knot beyond shoelaces. Seems common enough.
Start a fire, with a lighter and dry wood.
Walk down the street without tripping over their own feet, eventually.
I can’t swim, but that doesn’t seem uncommon. Been waterskiing, though (with a life vest). Made it across a pool by dog-paddling once, though, into the deep end and everything.
Can’t roll Rs, either, but that doesn’t seem a common skill, either. I had a linguist friend of mine teach me some of the techniques she’d used or heard of teaching students, but I think she just wanted to see how short my tongue really was.
I dated a man for ten years who could not drive nor type (complete lack of computer skills).
The relationship fell apart when I was in a car accident and he couldn’t help because he could neither run errands for prescriptions or help me answer emails. I can understand folks in New York or any similarly large city not driving, be we lived in Southern California at the time…
We are still friends and he is 45 years old, but he still does not have an email address because he can’t operate a computer or figure out a keyboard…
Vanderbilt University. This was when the drinking age was still under 21. Pub’s still there, though, still serving beer AFAIK. Just to graduate students/staff/faculty now, though.
It seems as though approximately 5% of the people I work with have never learned how to walk down hallways or navigate corridors. They’re constantly baffled about why no one else seems to have such trouble with people walking into them but haven’t yet, in 30-60 years on Earth, managed to connect the dots that this is because virtually everyone around them walks on the right and expects they will too. And let’s not even start on how many I’ve had to teach how to turn on a computer over the years…
As for me, I can’t drive a stick shift, either. It’s not that people haven’t tried to teach me, it’s just that I’m very very bad at it; maybe it’s because I’m too uncoordinated, too left-handed, or too distractable, who knows. And, until a week ago, I didn’t know how to make pancakes that you don’t microwave. I am not a natural, but I’m already better at making pancakes than driving a stick shift.
Knots are actually a bit of a bugbear. When I used to fish regularly I could tie a surgeon’s knot, but it has been years and I bet couldn’t now. Rigging anything is an exercise in humiliation and frustration.
Texting. I do have a cell phone, but I have never bothered to learn how to text with it. I think this makes me old :D.
Oh and I can’t type properly. No touch-typing, anyway. Just never learned. I mostly type with two fingers on one hand, shifting with one on the other.
I was confused by the question until I got to this post. Right…forgot the American drinking age is 21… 'Round here it’s 19, so many first year students, and pretty much anyone beyond that can drink - my school had at least 5 separate affiliated pubs - one for each residence, and one connected to the school, but not the residences (not that I ever went to my residence’s - don’t think it was open my first year, so everyone just got in the habit of going to the non-residence one).
Oh, and I can’t drive stick, and the only reason I can drive at all (at 34) is because a licence is necessary for many jobs.
A few years ago, I had to help a 25-ish year old friend check the tire pressure for her car. She had never used a tire gauge.
…
And yes…then I had to teach her how to put air in the tire.
-D/a
At both universities I’ve attended, there have been pubs. Mind, I went to university in Canada, where the drinking age is 18 or 19, depending on the province, so a university without a pub is a bit of an anomaly. 
Anyway, I’ve never been able to whistle, and while I understand that my cellphone can text, I’ve never used it for that–in fact, I’m not sure how to compose and send a text. But I can drive a stick shift and tie my shoes.
A LOT. I’ve long since lost count of how many I’ve had to teach that. I’m not talking kids, either; I’ve had new hires in their 20’s who have been living on their own for a few years walk around sweep-sweeping at intermittent spots like they’re sweeping up litter at an amusement park. I sometimes think I was the last human being in the United States to grow up with household chores.
Can y’all fry an egg? Because, after a lifetime of trying, I just learned how, successfully, picture-perfect! - a few months ago.
Let’s see here (since I’m 14 I’ve left out such skills as driving):
-Can’t swim
-Can’t snap or whistle
-Can’t tie most sorts of knots (although obviously I can tie my shoes)
-Can’t cook
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Can’t swim.
-
Have a very difficult time tying a tie. I learned how to tie a half Windsor a few years ago, and it takes several attempts to get a result that’s somewhat passable.
-
Can’t dance. A long time ago, I had a date with a dance instructor who tried to teach me simple two-stepping, and even she failed.
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Can’t ice skate, roller skate, roller bade or skateboard. I’m otherwise fine on ice; I’m a better-than-average curler. Go figure.
I’m an American and I don’t think it’s unusual for colleges/universities in the US to have pubs. What may be unusual is for them to be called pubs. In my experience they’re more often called Rat(h)skellers, oftened shortened to just “The Rat” or “The Skeller”.
I didn’t know there was any way to tie your shoes other than the rabbit ears way. 
Well, I mean aside from “double knotting” them, which is just rabbit ears and then another square knot with the “ears” for extra security.
No one in my immediate family can snap their fingers. We’ve all had people try to teach us at various points in our lives, with no success. As a teenager in the school jazz ensemble my mother developed a work-around – she can somehow crack her knuckles while making a finger-snapping gesture.
I’m inclined to believe some people just can’t snap their fingers, but it may be that my family is just unusually clueless in this regard.
I’m 46 and can drive a stick shift, but I think I was one of the last age group to do so.
I don’t know anyone my age or younger that can drive a stick shift. I think stick shifts are still around in rural areas. Could you imagine what a pain it’d be to drive one in Pittsburgh or San Francisco (Both cities are basically one big hill)
On the other hand I know how to read shorthand. We had to learn that and typing in high school.
All of this reminds me of the old joke where the husband and wife are in bed and she asks him if she dies would he remarry. He tries to brush her off, but finally admits that he would. Then she asks would you let her wear my clothes, sleep in our bed, etc. all of which he reluctantly says he would, the finally she asks if he would let the new wife drive her car.
“No,” he says firmly, “because she can’t drive a stick shift.”
I can’t shuffle cards.