Better keeping them on then not wearing them at all. My teenaged boys insist on wearing shorts in 10 below zero weather lol
I would not have even thought anything about the sweatshirts.....they're at home and comfortable.
The name of the game is learning, they are learning that "The Old teach the Young". You are learning that "The Young teach the Old". LOL Great to have kids you can photograph, I am envious as usual.