in Poland it's pretty much impossible to get diagnosed as an adult cos it's still considered a childhood disease (that you grow out of? ridiculous) and until recently the official name was "childhood autism" (autyzm dziecięcy) as if there wasn't an adult form of it
the standard tactic is to diagnose adults with schizoid personality which is kinda similar in symptoms, that's what I got diagnosed with, but most likely I have some form of autism
it's also probably done to avoid giving autismbux to inkwells, you can't get any money for schizoid, but you can with autism diagnosis (tho it's still not enough to survive) -- gotta work your shitty 9 to 5, prolly doomed to work entry level jobs at best cos no one will want to employ you