I don't think I've ever met anyone over the age of 18 who didn't know "how to drive."
But yes. Stick, too. I know plenty of people, on the other hand, who don't know how to drive a stick shift, but I personally would never own a manual transmission.
Imagine not being able to eat fast food while driving in traffic.
I know quite a few people online who don't, but all live in Europe where public transit is widely available and driving isn't a necessity.
All the Euroweenies I've ever met were somewhat gearheads, and roasted me for driving a wussy "point-and-shoot" automatic.
When I was 18, I had no choice but to learn quickly how to drive a manual transmission on a Ford Mondeo. Which were the standard NATO military police patrol vehicles on NATO installations in Europe.