I have autism. You don’t get benefits.
If you drive a car or go out by yourself on the bus they will say that proves you’re capable of moving physically, going on journeys by yourself, your cognitive skills are fine. If you’re not anorexic they’ll say you’re obviously capable of buying and preparing food and feeding yourself. I got told I was too fat to be having difficulties with grocery shopping. If you have any qualifications they’ll say that proves your brain works fine.
Essentially you have to be failing to cope and failing to look after yourself in order to get benefits. Being unable to work because of autism doesn’t count. You have to be physically or cognitively incapacitated.
None of this is true. I drive a car and qualify for high rate mobility. I have a motability car. I don't qualify for a BB though. I also get enhanced rate care, as I need a lot of support and struggle with many aspects of my day to day life. Food is a huge one, I am obese because I cannot prepare food and eat takeaways and junk. I wear the same clothes (clean of course) on repeat and I do not dress for various weather conditions. I need support when engaging with people, I need support to go to new places...I could go on.
If you look at the criteria for PIP/ADP you will see how these things are scored and work out where you can evidence that it 'fits' you.
Lots of autistic adults get PIP/ADP, don't listen to the scaremongering, angry voices. Just take your time and work through each criteria.