Because _real_ study is boring. Watching videos on Youtube or playing "educational games" is not studying.

You need to repeatedly solve multiple practical problems to internalize the knowledge. And you'll eventually need to do stuff that you don't really like at all.

The proper response to that is still not to force your kid to study though. Instead, she should be made aware that in order to consistently do well, she is ultimately expected to gain the ability to force herself and defer the immediate gratification of watching a YouTube video (unless that YouTube video is a boring recorded college lecture that's relevant to her studies, I suppose).

That's right. Real learning is difficult - even for activities we enjoy.