"Stand to the right on an escalator"

"Put trash in a trashcan and not on the ground"

That wasn't complicated. And took 30seconds. Are there a lot of rules? Of course. Is knowing them all in advance possible? Of course not. Don't confuse that with 'complicated'.

Fine people who litter. Have an ai voice chide people who stand on the wrong side of an escalator. Both simple.

Do I really have to stand to the right on an escalator? I think the nearest one is a mile away, that seems really inconvenient and unnecessary, and it's going to be hard to get my work done.

I'm surprised to find this sentiment on a site filled with computer programmers. The most important and difficult lesson of computer programming is that simple-sounding rules have a lot of details that we take for granted.