It's not something I would do. Perhaps he will contribute to your household in other ways, by doing small DIY jobs, looking after the garden or some other work you would prefer not to do or can't do now. You could suggest he pays something and save it up to give to him when he leaves. But I can't see why you would charge him unless you really need the money. Anything you save will be left to his parents anyway, so spending it on him is just cutting out the middle man. I suppose it's a lot to do with how your own parents treated you, mine never asked for money when I was with them, either when I was a student or when I was working. (My mum was inclined to borrow clothes from me when she fancied it!)
Adverts that are being shown on the tele
When a political leader lies on their CV - can you trust them?

. Things changed when she moved into her own house with her OH & she realised how much the bills were, soon put a sweater on
