My cousins are just a couple of years younger than me.
They grew up without a television in the house. They lived in the middle of nowhere.
It really affected them as they a) had a total disconnect with their peers because they didn't have any shared cultural knowledge. b) they had an inability to cope with normal things. Watching even PG stuff was traumatic.
I remember they didn't know who Tom and Jerry were and I remember them aged 10 and 8 getting very distressed and upset at watching a Tom and Jerry cartoon. They had very little in common with other children.
So even when I was pretty young, I understand that sometimes these things are more important than you realise in building relationships and being able to function as part of society.
This DOESN'T mean you have to be giving full unfetted access to the whole world on your smartphone either.
Its a bit like a bad workman blaming his tools for cutting off his right arm.
Hitting 16 and THEN getting a smartphone without learning how its not always good and not learning moderation is potentially a hazard in its own right for various reasons.
You can't escape the world you live in. You can try, but it doesn't work.
My cousins are doing ok now - one lives in buttfuck nowhere in New Zealand with sheep for company and the one lives in buttfuck nowhere in the Highlands of Scotland. Both have struggled with society throughout their lives. Its limited them in its own way.