DS1 is spending around £20 a week on school lunches. I asked him to reduce his spending and have bought reusable water bottles and snacks for him to take from home but he still spends £3-5 per day. As he is 14 years old AIBU to give him a set budget and if he runs out of credit on his school account he will have to use his own pocket money or make his own lunch to take in?