There could be some of that, but you pretty often ask people where they went to school and how they grew up.
If there were a lot of homeschooled kids with good social skills I’d still expect to have met some.
If there were a lot of homeschooled kids with good social skills I’d still expect to have met some.
Unless you're quite young, it's doubtful that you've interacted with many of these next-gen homeschool kids.
I think it's pretty likely given that statement and the small population of home-schooled kids to begin with, that confirmation bias explains your entire experience.
But let's assume it doesn't. Home-schooled kids who do have good social skills are likely to realize that there is a bias against them and thus they aren't likely to advertise that they were home-schooled.