For some of us, yes.
A folding phone is something else I've little interest in. Especially once I put a case on it, the double thickness effect will make keeping it in a shirt pocket more difficult. From what I've seen online, it looks like the basic idea is a hybrid between an iPhone and an iPad Mini and pretty costly. No doubt some people would buy them, but no appeal for me.
I've dropped mine twice this morning; both times it dropped out of my shirt breast pocket when I bent over to check or grab something on the floor, etc...
It'd be interesting to see what each of us looks like, what environment we operate in and how close we keep the phone. Someone living alone in an efficiency apartment with a white collar office job where bending over is a rarity would be very different from someone roaming a house, often bending down to pick things up, keeping the phone on their person at all times, and occasionally letting their little kid play with it.
I'm 'hefty' and tried at OtterBox belt clip case; worn on the side, chair arms can snap it off. Worn up front, when I sit my gut can snap it off. I don't wear a 'man purse.' I don't want to have to be obsessively mindful of the thing and want it on me. That means a shirt breast pocket, but an iPhone 12 Pro Max is tall and sticks out a bit. Depending on how the shirt I'm wearing fits, etc..., it can slide out when I bend over and pick up dirty clothes on the floor, etc...
I can see where some people may find case-less phones a workable alternative, but for some of us, it would be insane.