When I was 6 I hated school as well. That was because kids always made fun of me for having PKU. You might want to check with master 6 just to make sure that isn’t happening. Also, a lot of 6 year olds just don’t like going to school because that is when they start losing the nap times and play times that they are accustom to. If he’s been having good levels that shouldn’t be a problem. I used to have levels between 10-14 when I was his age and that didn’t affect me too much.