My 17yo son is going to The Canaries for a week with his girlfriend's family, staying in a villa. They've said there's no costs other than paying for his flight however I want to transfer money to gf's mum to contribute to his food and drinks, and he'll have his own spending money too.
How much will be enough for 7 nights? I imagine they'll do a mix of eating in and out and they'll buy him beer too (which they know I'm fine with).
Thanks!