Doro HandleEasy cell is a good option for your sausage-fingered uncle
It’s got a simple layout and basic high-contrast screen, easy-to-set quickdial buttons, and no features to speak of other than text messaging and an FM radio (oldsters love that stuff).
We tried to set my Grandma up with some Motorola flip phone last year and it was a disaster. This HandleEasy is something the Greatest Generation (and their retiring, non-tech-savvy kids) can actually use.