I grew up in several different countries because of my dad's job. While it isn't a blessing by any stretch, I don't think it has to be a complete disaster. One of the major problems is that diagnosis is near on impossible. Granted this was in the early 80s so little was known about ASD let alone in developing countries. I was first flagged at age two. I went to see a bunch of people growing up, but it all fell by the wayside around 7-8. It is only through my own effort that was diagnosed at the age of 25 then again at 26.
When I was younger I made nothing of just leaving the people I'd met completely behind after 2-4 years, it seems. I never made reciprocal friendships, so keeping in touch with someone was not something that occurred. However this situation wasn’t so terrible in comparison to being put in a boarding school at 7 years old. Fortunately I managed to finally escape finally at around 14. My dad had been posted to Jamaica, and I jumped at the chance to get out of that hellhole.
The school I went to in Jamaica was quite unique, in that not only did it have other cultures, it barely had a predominant culture, as most were expat children from all over the world. I didn't think I fitted in or I didn't fit in. I just wasn't bullied mercilessly so it was a relief. What’s more some people liked me (if only it clicked).
I also got away with murder. I did absolutely no work over the two years except paint a mural and write some short stories and poetry
It wasn't to last, but enabled me to avoid complete breakdown until later, which depending on how you look at it swept the problem under the carpet, or allowed me to survive adolescence without going crazy.
I share some of the experiences of anna-banana. It can also be the other way round: As a native trying befriend a foreigner. It might seem like a good idea, but some people adapt better then others and they might not be the person you first thought. It is not really a cut and dry thing. I like lot of different cultures/different backgrounds. I’m not fond of nationalism.