Saying all that, he is allowed to use an oven though.
My mam is an obsessive control freak who liked to make life as hard as possible, thats why I went through a period of time where she would have preferred me not to use the oven. It wasn't a case of not being able to use the oven, it was a case of refusing to make me something to eat whilst they made food for themselves and not following me to cook for myself so I had to settle to either eat out (too expensive) or eat the ready made junk food that they had bought despite me wanting to eat healthily at the time.
Wait, your mum refused to feed you?