Personally, I don’t even think adults with phones are alright.
Remove the phones and the problem will remain, which is people’s desire to consume detrimental content, or content in detrimental amounts.
Before phones/computers/internet, it was garbage on television channels. Propaganda on 24/7 “news” channels, “reality” tv shows, etc.
Yeah, age and maturity are two different things entirely. One of the bigger issues / trends right now is immature adults with power.