My DDad wants to put some money aside for his grandchildren for university, approx £15000 per dgc. He doesn't want to just give it to the dgc at 18 as he feels it's a lot of money at that age and if they spend it he can't replace it. He doesn't want to give it to parents of dgc either for reasons I'm not going to go into. The youngest dgc is 6 so uni is a way off and, as he says himself, he may be dead by then. He ideally wants to lock the money away but then dgc get a payout of 5k at 18 & 19 and then whatever remains for the final year. Ideally he would have some sort of clause that they only get it at these ages if they are at uni, otherwise they can have the lot at 25 for whatever they choose.
Has anyone got any suggestions of something he could set up? Oldest dgc is 13 so uni but closer for them. Thanks!