Ah, yes, that’s harder to solve. But a smartphone or similar device (tablet, iPod touch, etc.) would actually help there: the buttons being on the screen means they’re generally larger than physical ones, and it only had the ones you can actually use now.
Do all smartphones have touch screens? Bigger buttons would certainly help - they do on my house phone - but I've tried using touchscreens and those touchpads on laptops, and shaky fingers usually mean I've touched the wrong part of the screen, touched it multiple times or swiped across it and lost the screen. Any of these means the phone/laptop doesn't do what I want it to. I also usually pick up a smartphone by one or more of the buttons on the side - mind you, I do that a lot with my house phone so nothing new there!
You can use a desktop or laptop computer, I notice. Smartphones are, if anything, easier to use than those. (Though I must say my opinion of Android phones isn’t great in this respect, but that could be due to limited exposure to them.)
I suppose they have fewer functions and so are easier to use, but it's taken me twenty+ years to learn the few bits of computer stuff I know. I don't think I have that long left.
I don’t own a mobile phone, and never have.¹ I do, however, have an iPod touch (that’s basically an iPhone without the phone) and an iPad, both of which can be used to take pictures with just like a mobile phone can.
I tried uploading itunes on to my Windows PC a few years ago so I could copy some tunes into my grandson's iphone. It totally killed my PC (It got 'bluescreened' beyond any repair technique my brother knew and he builds 'puters for a hobby) and I had to buy a new one. It only had a 286 (?) processor so it was about due for replacement anyway, but the moon will turn into green cheese and be totally devoured by Star Mice before I touch another Apple product.
¹ Well, that’s not entirely true. I have a non-GSM mobile phone from the early 1990s, but that’s because I kind of collect this stuff. Oh, and a handful of display models of smartphones of about a decade ago: the outer shell with nothing inside except a steel plate and a printed picture instead of a screen :smiling3:
That's a strange thing to collect - not the working models but the display stuff. However did you get interested in those?