That might explain my naivety here, I've never really gotten into using tablets for anything.
My mother uses it for everything. The small phone screen is hard for her eyes, she doesn't really need a laptop and the tablet is just right. She still carries a phone with her but I can imagine if she replaced both tablet and phone with a single foldable she'd be happy. On the other hand, she'd want it to last 5+ years and she'd never spend €1800+ on it.
I am a tablet user but crease is a non starter. However I know people who like foldables in different ways, like financial stuff, they don't care
And I've never gotten into using my phone for anything outside of calls messages and navigation. The web is the worst on tiny vertical screens.