Holy socks, batman!

My DH wears socks riddled with holes. He likes them. He doesn't care and if he's happy, so am I. Everything would be okay, except his mom (who is fabulous btw) is constantly telling me that I shouldn't let him wear those socks and that its my job to "take care of him": buy him socks, throw away the old ones.

I disagree. He's a big boy. He wants socks, he knows how to drive to Target. What do you think? Would you get your DH new socks? Or are you with me and let him take care of himself?