Absolutely generational. In my workplace mincha you can see a clear age line in who puts in a yarmulka when they come in and who is wearing one already.
In previous generations there was a lot of anti-semitism and anti-frumkeit that people had to deal with. So Chaim Goldberg became clean shaven Harry Gold who is a vegetarian. Baruch Hashem it isn’t nearly as much of an issue today as it used to be. People feel more comfortable being openly frum and aren’t afraid that there will be some form of backlash for it.