This might be a thing in cities that have quality and large transportation systems, but one thing I noticed while traveling is how etiquette seems to have changed. When I was a kid, long time ago, and we used public transportation in WA and any time we traveled, my parents always stood up for older people, made us kids stand up too, and of course we complained.
Now, i see people cross-legged, taking up two seats, they’ve got the kids, small kids all on the seats while the guy with a cane is standing, it’s a struggle to get people to move over or to the back for more people to get on. It’s like reversed. The oldest people are just kind of ignored.
When I was ten, for sure, get up for that older man or woman, my complaining would just lead to some unpleasant punishment back at home.