I obviously don't "know it". But I can say it's something I've witnessed a number of times.

It may be due to the fact that I live in Idaho which has extremely lax standards for homeschooling (which is why some of the cases I observed happened, people fleeing other states so they could avoid oversight on their kids education).

I will admit this is mostly just my own anecdotes. But, it's also the reasons given by a number of my family members and people from my former church that go down that route.

I was homeschooled and avoidance of "worldly" topics like evolution and (very basic) sex education were at the core of it.

This is anecdotal fallacy if the intent is to suggest homeschooling is suspect because such cases do occur. You can find equally strange cases in public schools.

It's a straightforward description of lived experience. The only "intent" I see is to tell us of the curriculum that was pressed upon the author.

My wife was homeschooled and that's the main reason, along with the other families in their group.

Literally dinosaurs? Really?

Lots of things were scribbled out of textbooks. I don't think the existence of dinosaurs was denied but context about them was changed

Please look up the family of Enoch Burke (and siblings) as of late and what his mother who home-schooled the whole family on the basis of religious ground has wrought lately.[0]

It does happen, how ever you wish to disparage others for factual statements.

[0] https://en.wikipedia.org/wiki/Burke_family_(Castlebar)

I can't recall a single instance that this would not be applicable to growing up home schooled. Sample size of dozens of families. Seemed to be roughly the case to teenage me at the regional "events" as well. Could of course be my personal bubble.

Very few would admit such in public, but social and moral reasons were the overwhelming cause for most to home school. Education was an extreme secondary priority to the point of being not one at all in some families. Some kept the kids out of school to literally put them to work.

The sequestering from society is usually the point - for better or worse. This attracts the exact type of people you would expect it to.

Perhaps the situation is different 20 years later but based on my continued exposure to the "scene" I doubt it. I'd be amazed if the majority of folks are not engaging in home schooling for what amounts to religious reasons - however we want to define religion these days.