I don't know, I find DCs who have adults as friends, often are not able to deal with the same power relationships that you have with peers as children, and the inevitable rough and tumble that comes with this.
So what?
When you're an adult, you will be friends with adults, anyway.
Yes, children who are very sensitive and can't deal with the bullying of other children may prefer adult friends.
Doesn't mean that if you force them together with the bullies they'll somehow toughen up. They'll probably just be unhappy.
I'm from Germany and didn't have the option of homeschooling, and I was unhappy at school pretty much all the time. Also didn't do much of that oh so important socializing.
And I don't fit in, either. If I had been homeschooled, I would probably be more confident and be able to deal with not fitting into mainstream society better.
From the point of view of a child, home education looks like paradise to me.
From the point of view of an adult, it seems like a lot of unpaid work.