I stopped using NYC public transportation a good while ago…. mainly cuz the last few times I did, I had to ask a young person for their seat cuz I couldn’t stand 🙁 .. I’m not elderly, don’t look THAT old.
but more recently, when I was in Israel using public transportation, I’d definitely get up for someone older than myself who looked like they needed a seat, or even for a pregnant woman if I saw no one else was offering their seat. THEN, someone younger than me would go ahead & offer me their seat.