I suspect my husband is autistic. He’s in his late 30’s and I’ve finally got him to understand why saying “please” and “thank you” is important, even if he isn’t feeling like saying it at the time. Sometimes he still doesn’t, but he does say it when he remembers to (unless he’s focused on something else in which case it’s “yes” “no” or silence if I ask if he would like something from the kitchen)

I think it’s helped with his work relationships as well.

I think you’re doing the right thing