Can you be more specific than teaching math "at the college level"? In America, after 13 years of public education by professional teachers, they're lucky if they've even taken an introduction to calculus or trigonometry. Somehow I think I can do better than that.
Ad hominem. The system you're defending has set the bar so incredibly low that I just need to do "okay" and my children are infinitely more well off. Homeschooled kids consistently do far better than kids who attend public school, even by the standards and metrics public schools design. Your "average" is my failure state.