>>1509220>>1509151Two takes on this:
1. I have no strong feelings if someone is eating or drinking on trains where it is prohibited, and even smoking is only of mild irritation.
2. I find it ridiculous that asking people not to eat or drink on a commute vehicle meant for an hour or so of passenger travel time is considered an unreasonable request, regardless of how thoroughly it is enforced. When I lived in Taiwan and visited Japan, eating/drinking in the trains was a non-issue; someone would steal a drink from a water bottle or such, and even then I'd only see it once or a few times a month in a nearly packed train.
I really don't get how people here feel that mildly inconvenient public courtesies are a sign of weakness/being cuck/onions/whatever, or otherwise something to disregard.