I had two interactions with the same type of realization as a kid.

One of them was the tough and sort of school bully, who one day during the days of yule preparation at school went up to me and tried to probe me on how difficult making candles was because it was gonna be his turn soon.

The second one is more similar to yours. Summer camp thing. One guy I was in the same class as in school was playing tough during the camp. Did not interact a lot with him then, just noticed it, like he did not need a teddy or stuff like the other kids brought. Then we are back at school, after camp, he is not back. I hear from somewhere that he got severly home sick during camp, and had a hard time processing it. Later he did show up to school again, with his mom dropping him off. It was horrible. She tried to leave and he just cried and screamed. I think they tried it a few times more, but he just sat in a corner crying. A year or so later I see him back at school again, retaking that year.