No...he never stepped foot inside a high school. When he finished 9th grade of homeschool, we went to the college (in our state it’s any state college, not only community colleges) and took the College Placement Test. He tested into College Algebra, but that summer we had him take an Intermediate Alg. class (just in case we’d missed something, LOL, during homeschool.) Than in the fall he started and went to the college classes for 10th, 11th, and 12th. Best part was, tuition for dual credit is free (if you’re in public school, books are also free...homeschooled or private schooled kids have to pay for their own books.) It became so popular among many kids, that now on one of the community college campuses, they actually have a “Collegiate High School” and if they attend that, then the school board can get the gubmint dollars.
My kids were the first homeschoolers ( and the youngest) ever to admitted. We had to jump through a lot hoops just to get them in. We even had to hire a psychologist for testing to prove that they were gifted. And...We paid full tuition and all books. They were not eligible for loans or scholarships because they were not high school grads and it was against the law to take the GED before age 18 or 19 ( I forget exactly.)
Anyway...Thanks to my kids and other pioneering homeschoolers its a lot easier now for both the homeschooled and institutionalized teens to get admitted.