I totally understand and I know the feeling. I had the same situation with my son. For him he cooks his own food. I was really worried about him because before he started university he did not even know how to cook. I used to call him every day checking whether he had eaten.Thank God to Youtube, he learnt to prepare food and now he is a genius. I sometimes ask him to cook for us when he is on holiday and he prepares delicious meals. You do not have to buy whole lot of clothes at one go.
Yeah he will change. You will be surprised.
oh my son loves the youtube and is always showing me interesting foods he wants to try, but never makes the effort to make them himself. In college I am sure that will change, like you said , especially since he will be 3 hours away .