> Your kids are a bad influence for whatever reason? Not my problem to fix.

Not your problem to fix for sure - but it is your problem to equip your child to comfortably weather. There are bad influences out in the world and they generally have outsized effects on their social and professional scenes. In fact, the kind of curated, limited community you're advocating for is one where bad influences thrive.

> So much time and resources, to produce what exactly? A piece of paper and fancy picture to stare at?

I certainly agree the degree is whatever - but I think you're really under-valuing the social-gauntlet aspect of school. You will have classmates who kind of (or really) suck. You will need to do your work anyway. You will be incentivized to learn perseverance and a self-centered locus of control. These are valuable skills that only come from actual exposure to bad influences.

Someone who's perfect in perfect conditions is going to struggle because the world is not perfect. The aims you highlight here make me think less of homeschooling than I did before.