It's okay if you're saving money for a down payment on a house/condo, but not if you're Cliff Clavin.
At 25 it's pretty pathetic. Not even necessarily living with your parents per se, but having your mom still cook, clean, make your bed and do your laundry for you and on top of that not being self aware enough to be embarrassed by it.
It's like, of course it's easier to have someone else pamper you and do everything for you. It's also predatory and probably speaks to a pretty weak character.
No wonder he is a shitty QB. How you do 1 thing is how you do everything.