It worked great for your family. I have no problem with that. Your parents were apparently well-suited for that role.
My mother was a high school graduate, my parents scrimped and saved to be able to afford her staying home. And we were well off, compared to many families, because my father did have a middle class job. You don’t know what you’re talking about if you think it takes a middle class salary to support a homeschool family. I knew a family of six whose dad repaired appliances for Sears. Families where the breadwinner delivered for UPS. Whatever. I knew an inner-city black single mother of two boys who was homeschooling them and working night shift because her alternative was the public schools.
And my local suburban, wealthy middle class community high school had a horrible rate of team pregnancy, ecstasy use, and three pipe bombs found on campus in one year. Not to mention the fact that the year I took the SAT I was the only student in the entire, rather large district, to make National Merit Semifinalist.
If the parents are motivated, I’d wager any couple can do better with their kids than the local school. That’s a big if but I believe it’s true.