The problem isn't phones, it's the addictivisation of social media and gaming. Being able to stay in touch with friends and family is potentially a good thing.

But it's currently implemented as a hook for psychological and chemical addiction, so that user attention can be sold to advertisers.

That is a problem, and I think we're starting to see a movement which will eventually end with these platforms being banned, or strictly regulated at the very least.

It's basically casino psychology applied to all social interactions. That is clearly not a good or healthy thing.