Yes it is, but it's polite to ask. At least, that's what mum told us all the time when we were younger. So far, what have you done?
Sweet, I'm looking forward in spending some time with you. You're not going to burn a hole in my pocket when we go out shopping, right? Mum and dad don't pay me a whole lot for working in the summer or holidays. It's why I want to find a different job. Quite possibly at the nearest Qudditch Statium.
Yeah, just one more year and I'll be out for good. I can't wait. Dad isn't going to make me work at the shop the rest of my life, right? Because he's making me this summer again.