Rode the subways in Chicago when we were about 10 years old--by ourselves, down to the Art Institute. Then our mother would come down and pick us up. The lessons didn't rub off on me. I sure wouldn't try to ride the subways in Chicago now.
Not too hard a puzzle to do.
That's either in China or Japan - I'm not sure. I've seen videos of people getting on the subway in Japan - it's crazy - I don't know how people get on and off when they want to.
I've used the subway in Manhattan! You know where the stop is and then you get up the stairs and get confused. It is great cause you do not have to play with all the traffic!
Have never been on one. Don't know if I would like them or not. If I was lucky enough to get a seat, it might not be bad. Wouldn't care to have to stand.
Not too hard a puzzle to do.