So true. When my grandmother left Ireland, she could write to them back home, but it wasn't assumed she'd be back. As it was, it was many years before she did return for a visit, and that was only because she was a new widow with two babies in tow and was desparate. She walked right into the middle of a civil war, so she turned around and went back to the States after a couple of months. She never went home again. My grandfather never got to go back home. His brother made it to the States, but the rest of them didn't. Travel was so expensive back in the day, and being able to earn enough money to take the time off that travel took pretty much ruled it out. They were just "working" people.
I think people are going to have to really curb travel by plane. I don't think I've ever been anywhere where so many people thought they were "entitled" to a vacation abroad, even people of very limited means seem to fly off to a beach in Spain regularly. They might have to start going back to the UK seaside towns their great-grandparents did, rather than jetting all over the place.