Back when I was at school I mostly stopped going to classes when I was around 15 because it just seemed like a waste of time
(Head teacher already acknowledged that realistically no online college or any plausible job is going to check grades so theres no repercussions to just lying about it, which is what I did..
38 now and yeah nobody ever checked. Didnt even do the online college, just said I did lol)
Anyway I couldn't leave the school grounds for entire days because otherwise it switches from 'late' to 'truancy' so I just sat in the library going through reference books.
Now here's an example among many:
I read the biology reference book cover to cover, forwards and backwards, up and down.
I basically memorized that book. I took every online test that physically existed covering the entire 200+ page book and passed with anywhere between 90-100% every time, even for higher class curriculums.
After a couple months of that the principal caught wind and told me I can't be in the library during classes so I went back (for maybe a week...lol).
I came back and in that time the class had gone from (for example..) page 48 to ....page 49
If I ever get around to having kids I'm absolutely never sending them to a school. Absolute waste of time for all involved.