I feel like there could be an Explanation #4 which is something like: for many people lots of math is used so infrequently, it's hard to retain after you're don

I feel like there could be an Explanation #4 which is something like: for many people lots of math is used so infrequently, it's hard to retain after you're done with school. Maybe more drills would help that? I did pretty well in high school math and got through the most advanced math classes my small town school district had to offer. Then I opted out of driving to the next town over to do a more advanced math class with something like the 5 other kids who qualified. I think it was pre-calculus or something. So I ended up not doing math for a year, then I really struggled in my first college math classes, and had to retake one of them. Since then I've basically just forgotten everything because it comes up so rarely. How often do I need to do fractions? almost never, and when I do, I can just look up a factions calculator. Never mind trig or calc. Day do day, I think I need basic addition, subtraction, multiplication, and division. And I figure out percentages a lot. But I'm also doing all of that with a calculator. I think financial cautions, like compounding interest are the most advanced things I run into regularly.