Can kittens eat adult cat food?

I switched mama’s food back to adult one ever since her kitties started to eat wet food. Also because mama cat is beginning to dislike eating kitten food and kept stealing my resident cat’s food. So Mama cat steals my resident cat food and the kittens steal mama cat food. 😓 they all do eat the kitten wet food first but afterwards they’ll go eat their mom’s food. Will they be okay?