Most schools provide accommodations for students with autism. Adults with autism have a constant battle with getting support and assistance. Getting social security can be a challenge. It's a constant and scary world for us. What is going to happen if our parent/guardian dies? It's even scarier for those of us who can't find or keep a job.
Getting an IEP for your child/teen is not as hard as trying to get disability. Needing a ton of records. Stressing the fact that autism doesn't end when you're an adult.
I noticed that my mom understood me more up until I turned 18. It was a difficult transition to adulthood. If I couldn't 'adult' like she wanted me to she will just shame me and say I think like a child. If I have never been exposed to adulting, HOW DO YOU EXPECT ME TO KNOW WHAT TO DO?
When I was a teen, my mom helped me when I needed. When I became an adult for say, my mom would say I need to do it myself. How does she expect me to learn if I have not been exposed to it and if she doesn't want to show me? I needed to pick a new dental plan back when I needed dental surgery. My mom didn't even want to help me pick a plan. I ended up picking a plan that didn't cover what I needed. It caused me so much trouble that would have been avoided if my mom had of showed me what to do or walked me through it so I'd know. That gave me the impression that my mom thought I didn't need help after 18. My mom doesn't understand is how do you expect me to learn if I have never done it, never been exposed to it? I will more likely fail being thrown into something I have never done, learned etc than to have some guidance until I get it right.
Autism doesn't stop at 18. Nor should the assistance the person is getting. If it were a physically disabled person, would you take their support when they turn 18? Then why do it to us?