Couldn't have said it better myself. I went through something similar. Parents considered most people I would have called as friends not "good enough" and forbid being around them for better part of my childhood. Now, in my 30s I have a few people from work I occasionally hang out with but no one I consider a friend. Haven't much dated either since seems like a chore.
I do wish sometimes that I was normal and had an active social life. Being single/alone at my age is beginning to look weird.
As you might imagine I'm quite okay being alone for the most part having grown up friendless. I have no idea what having a friend is like, or how you're supposed to be a fiend, and for the most part that's okay with me. Ironically, my parents are actually now concerned about why I haven't dated anyone in my 30's; they've actually asked their family friends if they knew anyone that might be interested.
And there in lies the rub. If you're really okay with being alone, why bother having anyone else in your life? It's hugely uncomfortable for someone that's used to it, for little benefit.