Earlier quoted context omitted.
I spent high school in the woods home schooled and only socialized at church. So did all my siblings and a number of people I met at college. We all turned out fine.
Standard application of selection bias. People that don't "turn up just fine" don't go to college or browse HN.
Note that this is often relative. You may find the church to be full of people with bad values. Likewise, someone who is religious may not want their kids to socialize with kids that have parents that encourage things like transgenderism in pre-teen kids.