Good question.
I think most older Aspies probably end making peace with themselves for their AS traits, having at least a couple people to relate to on a regular basis, usually immediate family. They eventually learn what not to say to people in order to avoid conflict and rubbing people the wrong way. They have a sense of missing out on things that others find much easier to do, such as a career, material gain, friends, etc. They indulge in their special interests with gusto.
Others less fortunate who had little or no emotional support in childhood or were abused by parents for their AS, like me, end up hated by everyone and alone, with serious money struggles and gun-shy of people.
A few lucky ones, who had emotional support in childhood as well as some Aspie talent above NT level, end enjoying solitude and the fruit of their labor, possibly with quite a few connections, because they're considered winners by NTs even if "a bit eccentric".
Worst case scenarios, Aspies with no skills or support of any kind, end up in institutions or on welfare, alone and forgotten, pitied by all, seen as odd, ret*d loners.
This is just my assumption, partly from reading on these forums.
Looking forward to others' replies.
_________________
So-called white lies are like fake jewelry. Adorn yourself with them if you must, but expect to look cheap to a connoisseur.