I’m over 50 and have to say that one thing age provides is experience. Experiencing what it was like to own and use devices that had plastic screens that scratched, took on imprints from styluses or fingernails or keys, coins, etc.
No matter what anyone says today about foldable screens with ultra thin glass covers that require a plastic screen protector, they are never going to survive in big volumes the way a thicker glass screen has proven out.
And no, there is no pending change in physics that will allow a rigid crystalline substrate to also be foldable.
So you can suggest that older people are averse to change, but I’ll counter that with your desire for something doesn’t make it the right thing or even a thing that will ever become mainstream, simply because you want it to be.