Most of those "ideas" are basically :
- take a phone, remove features, package with bright colors, profit (or VC then profit, maybe).
Sadly a lot of those aren't recycling old gadgets, they are just making new ones and block features, lock down in their own "store", etc. I think it's actually quite terrible.
Yes, and dumbphones exist (again). You can buy a newer version of the Nokia 3210 that charges with USB-C and works on modern cell networks.