I'm not going to let a autistic kid play my switch
Why don't you share your Switch with an autistic kid ?
Every time he played with me, he just left the game unfinished.
It can be frustrating playing with someone that doesn't finish games. But, people with any type of disability should be treated with a little more tact and patience. You can try to explain to them, or their parent, why you are having trouble sharing your game with them.
He might not be autistic. I probably am, but I am not going to let someone else borrow my stuff.
I think if he has autism, you should be patient with him. Have you tried talking to him about not finishing games?