"She ordered a McDonalds breakfast at 10:30 in the morning on Sunday. Disgusting."
I don't see how this is much different to her going into town with her friends and having a McDonalds. She's a teenager and a lot of teenagers like McDonalds, big deal. Stop trying to micro-manage her life.
(In the old days) I used to be given money for school lunches and throughout my secondary school years I would just spend it on unhealthy snacks and a fizzy drink from the corner shop instead, same as all my friends.
Agree with
@Exhaustednurse, it's shaming his daughter again isn't it? How embarrassing for her that her friends will probably see that. The hoodie, the mimicking the mannerisms, the attitude etc. If he's going to start using teenage conflicts for content on his account (and ordering food to the house is NOTHING compared to what some parents go through with their teens) she is very likely to withdraw more and more from family life.
For all his talk of "I'm 14 years deep into parenting" like it's some sort of higher achievement than the rest of us, his inexperience is showing.