Many/most parents can’t afford that. Luckily I could. But most can’t.
We were a one income family and sent 3 kids to parochial school on that one income. At one point I homeschooled, and then one went to public school for middle school. Then in HS it was back to private school.
You can make things work financially if that’s your priority. I stand by that. It was never easy, and we didn’t drive the coolest car (only had one), we didn’t have the fanciest clothes (most were second hand). We had a budget and stuck to it. Only went to public school when the administrators at the parochial school became too uppity for me. We could only barely scrape together the tuition, but we felt it was an investment in the kids’ futures. Donating more after that during fundraisers we did the bare minimum. So we weren’t popular because of the money issue. It was all we could afford, but we sacrificed to do that.
I get what you’re saying, though. Homeschooling was also good but my kids missed their friends. Actually, each type of school had its pluses and minuses. I think it just depends on your priorities and somewhat your circumstances.
Many parents homeschool for a very low cost. We all passed used textbooks around, and we volunteered our time, organizing to give our kids an enriching learning experience. Our homeschool co-ops had more students than most private schools did.