How much spending money would a boy travelling with a school group need in the UK - lunches, drinks, souvenirs. All accom and breakfast/dinners paid for?
For lunches, drinks and souvenirs, he would probably manage on �10 per day. Are his local transport and entry fees to attractions etc covered? If not, you should allow extra for those.
Sylday do you work of live in London ? wish i could get a lunch , drink , and souvenirs with a tenner.... I would say a bit more just for some snacks maybe a few drinks in the day... It would be better for him to take more than �10 and have enough than take �10 and watch his mates having drinks of coke/snacks and him having to count his pennies..