And that is a first hand experience watching 42 gifted smart young children pushed in our education system and over their interessents on behalf of their parents. I attended this school for 6 years.
It was a pain, and as if school wasn't boring enough ( school is mandatory where I live ) you had to consider every word you wanted to say as a 16/17/18 year old when there where 9/10/11 year old depressed and ADHDish, but extremely smart kids around you the whole time.
In the end I am a hundred percent sure every kid can study MIT classes at every age. Most of the stuff is rational trivia. Also beeing gifted has nothing to do with your grades or your ability to follow classes or lectures. Because that's something your parents could've pushed on you, but for sure you are allowed to be happy that they didn't.