Cultures must really be different. I have used public transport to work for years and I can't even recall one single time someone tried to start a conversation.
Indeed. Here in Devon, Uk, at one time when I was commuting by bus, the regulars on the bus were so friendly we got to the stage where we were decking the bus out in tinsel and sharing cakes and bubbly when it was someones birthday.
Wow thats really odd. I've always thought in the UK that in london and the south people keep themselves to themselves but in the north like Sheffield people were a lot friendlier but maybe thats just because I lived there longer ago before smartphones were a thing
Devon/Cornwall is a lot more like the north or indeed a different country compared to London. Even in London people will come together in the right situation - commonly moaning about the weather, queuing etc.