p.s. off topic but on picture, a japanese friend told me there still is a designated person, wearing white gloves, just like in the photo, who "helps" people get on the trains. he also told me they answer the phone like this: moshi moshi! i still can't decide which one is more ridiculous.
p.p.s. my rebellion starts where it ended.
p.p.p.s. ubiquitous is the word you're looking for.