My grandma is 80-ish old and she watches youtube, tiktok, reads “google”, does banking, e-shopping (a lot), messengers, puzzles. All that on a serious level.
When she visits friends and tells stories, they always lament that they refused to learn “these computers”. She’s around 6 years into her tablet which I brought her spontaneously. She collected questions (we write everything down as a rule) and I had to find the way to manage the learning complexity at each visit.
Don’t look at age, just go and buy it for them. With a little help they’ll figure it out just fine.