My "brother" and I had the means of escaping our limiting situation, but the circumstances hadn't aligned to allow that to happen before we were brought here. [Mostly because Caliborn is a ridiculous brat, but that wouldn't be news to a single person who has met him. And she still had an optimistic hope that he could get better. But she won't share most of that willingly, for much the same reason why she's being awfully cagey about the specifics of their home life: hilariously misplaced superstition.]
But more importantly! My human friends, who I knew from what you would call "the Internet," all had circumstances of their own that left them isolated from others. Maybe not quite as extreme as your case or mine, but it was an important part of their, ah, [origin stories] personal histories.