Lighthearted.
What are the things that you can't stand today that just reminds you that you don't understand younger generations any more (I am 40s)? Not dieing on a hill for anything, just sharing some grumbles.
I'll go first:
Boys and men who walk around without a shirt the moment the sun is out. I am talking high street, trains, buses. Nobody wants to see you in a state you are in when you take out the bins, Steven. Bonus points for "going out" in crocs.
Crocs/flipflops + socks for anything more than taking out your bins, haha. This one is unisex, looks crap on both men and women. Ew.