It may be that the level of stress that will cause burnout is lower, but that should be expected for someone who is young and learning to cope with the challenges of work. Not all 15 year olds have the same lives or problems, and it's quite insulting to trivialize OP's experiences based on your own assumptions.
I am now 17 and I now realize that if it wasn't for that situation, I would still be gaming instead of learning a valuable skill.
Many people don't realize gaming can be a futile addiction like anything else.
Broaden your horizons, Mr. "Empath"...
If you're sharing personal experience, that's of course completely welcome, but in that case please frame it that way, rather than as an attack on someone else.
Edit: you've unfortunately been breaking the site guidelines in previous comments a ton. We ban accounts that do that. If you wouldn't mind reviewing https://news.ycombinator.com/newsguidelines.html and sticking to the rules when posting here, we'd be grateful.
Or do you think something like I've stated doesn't/cannot happen?
Meant this to be an example of other ways "burnout" can happen.