His privilege is showing more than he knows. Some people are born with disabilities. If you are lucky , you get to be temporarily abled. And oblivious to how fortunate you are until it leaves you. And then you get to gripe about "getting old" or whatever and kvetch about what you lost. Some people never had it. And never will.
I read this article on HN recently about trying to cultivate these experiences deliberately, I'd be curious what you thought of it. It seems like an interesting idea but I have mixed feelings about cosplaying as a person with a disability I don't actually have.
https://shkspr.mobi/blog/2019/07/i-feel-hopeless-rejected-an...