[Kadin]

Smells like confirmation bias to me.

Unless you go around asking people about where they went to school all the time, unless someone is so socially awkward that it causes you to question whether they had some sort of "different" upbringing, you'd never know whether someone was homeschooled.

It may be that a lot of socially awkward people were homeschooled, but that doesn't necessarily indicate that the other way is true. A kid who is struggling and obviously hating traditional school might be more likely to get pulled out and homeschooled by their parents, or families who are isolated for other reasons (politics, religion, etc.) may homeschool, but none of these demonstrate a causative link between homeschooling -> poor socialization.