My grandson is ASD. We knew when he was little that he was different.
Noises made him scream. He is in a mainstream school, and has friends who look after him, but you have to watch all the time.
There are some who tease him, but they will stick up for him if anyone is nasty.
When my son and his partner moved to this area, he was sent to a different school on the outskirts of Durham. He never progressed at all in that school.
He is ten and the school he is at are going to ask him to do the Sats this year.
He has a 1 to 1 assistant for half the time.
When he was starting school in a village in East Anglia, they were asked if they wanted him statemented. They were not sure, but having been a teacher myself and having another son and daughter in law who are teachers, we all said do it before he goes to school, otherwise it will take too long to get into the system.
I do not think that my grandson could survive in a special school, particularly for autistic children because of the noise element. On bonfire night he wore ear defenders because of the noise and still wanted to go home.