What David and FlyingCamera said...

There are some stations where the standing area is less wide than the inside of the train, and you are basically pressed against the wall when the train pulls in... not many, but there's at least one or two like that. They ARE making new trains and new stations that are updated that will open soon (like the next few years) but not all of them certainly, just a few. NY is just too old of a system to retrofit. People just need to stop being stupid... I blame the people not the the train system.