My DS is about to turn 18 before the end of the year. I’ve been worried that he’s been getting into smoking weeds on occasion and possibly other low grade drugs Recently. His attitude is not great either and it’s left me tearful on occasion. I know he’s going to receive quite a lot of cash from family/friends for his birthday (£1000) my question is - should I let him have it all or should I hold some back and give it to him when his attitude changes. I’m worried if he has a lot of cash he may end up trying other drugs or buy/sell drugs to make more money. But then he’ll be 18, so maybe he has to make his own mistakes?