A couple of times, me and Mum went to Butlins for a holiday. There was always live entertainment in the evenings and the theatre where most of it was held was always packed. The compère would ask everybody to shuffle along into the middle seats of each row to make it easier for latecomers to slot in.
Everybody cheerfully did this. I always think of this as evidence that working-class people have got a better-developed collective sense than middle-class people.