Hmm, she sounds like Everyone Loves Raymond's mother. You have the typical sitcom mom. Or the mom where you only hear her voice on The Big Bang Theory.

At 82 years old, I don't think you are going to change her tbh. She never had a job? Well, yes she most certainly did, she was "your mother" and she doesn't know how to retire. That does not compute with her hard drive my dear.

You are doing your duty and visiting her, but she will not be retired as "your mom". Sorry about that. But you can try, leave the hat home, and if you want to do yard work, pack your own "better looking" yard working clothes. If she asks about "where is that hat" be honest and tell her your scalp is tough enough now so the sun doesn't bother it.

Women her age did wear hats in the sun, as I said, part of her hard drive.