 What I would do
Tell him straight up what you think. Figuratively copy and paste from your post. Tell this once, and do not argue if he says that you're wrong (e.g., if he says "I'll get better."), but repeat if he asks for your opinion again (e.g. "How do I get better?"). Help him as you would normally (i.e. if you feel like it). Consider telling his parent(s) about your opinion, if applicable.
Ultimately, it's his choice. There is a distinct, non-zero chance that he will make a living doing what he (apparently) loves, and it is his right to pursue this dream. Unfortunately, he may think about rushing into this without a backup plan (e.g. a diploma). |