I have a PhD in a life science.
I can do fairly complex math calculations in my head (it impresses people).
I figured out mathematics up to calculus by the time I was 11.
There is no way I could answer your question #1. Learning history is a matter of rote memorization, a skill I was never good at.
However, I can do a pretty good job of playing the 1812 Overture in my head, complete with cannon shots.
If a kid can’t demonstrate good math or English skills by the time they graduate HS, then they went to a crappy school. And yes, I made a conscious decision to use the plural “they” as a singular pronoun, so as to avoid the awkward “he or she” terminology.
Why not, is it that the Lord Jesus is not amongst the top three or is it that you have no heroes or heroines in your life?