One of my grandkids is autistic and lasted about two minutes at his first game. Noise was too much for him to cope with, yes at Pittodrie. I've asked him a few times since if he's like to try again, he's now about four years older but he doesn't want to go back.
It's a shame but we do other things that don't stress him out instead. I wouldn't expect a special quiet zone set up in the ground just so he could go. Far too much catering to minorites at the expense of the many these days.