its a bit different in Tokyo. Yes they fit a massive number of people onto the trains at rush hour and last-call (the trains stop running between midnight and 5am) but there are also white-gloved attendants on the platform who aid and assist in this feat. The Tokyo subway system is one of the cleanest, most efficient public transportation systems in the world by many accounts. Also, Japanese etiquette is very different from our western slobbery. Train etiquette is amazing in fact. Its virtually unheard of to see someone on their phone on a train in Tokyo and if they are it is frowned upon. Also, when the pack is on most of you are probably wondering how you get off if you're stuck in the middle of the car. Just say "excuse me" (in japanese of course, so "sumimasen") and the pack parts and lets you to the door.