I'm going to push a man in a wheelchair whether they like it or not.
Are you going to offer to push a man in a wheelchair because he's disabled?
He needs me to help him. He just doesn't know it yet.
It's good to help disabled people. But you should ask first if he wants to be pushed.
I've already made up my mind to just do it.
Disabled people can take care of themselves and you pushing them without their permission is interference. Let everyone live their own lives and make their own decisions.