Every autistic or ASD kid is different. My nephew is a high functioning autistic man, but he would simply be unable to handle a trip like this, nor would he want to. OTOH, I’ve worked with ASD kids who go on these school trips.
Some “regular” kids wouldn’t be able to handle it either, and others would. I don’t see the problem. If the kid wants to go and the kid and parents think they can handle it, let them go.