OCTADE
@octade@soc.octade.net
It would not be a privacy nightmare for me. I would just refuse to own a phone. Privacy problem solved.
I know a man who still uses a flip phone and has never owned a smart phone and never had an Internet connection. No android or ios, no apps. He lives completely without Internet and computers and he is doing just fine.
I also lived using only a flip phone and without Internet for several years. In that time I accomplished more than half my life prior.