I had a computer at a young age in the 80's and started programming in early elementary school.
I also have a young child who is absolutely absorbed in computers, youtube, etc. I understand how much their collective social lives revolves around it. But even all the time I spend on computers, I still find the experiences vaguely disturbing. The effects on mental health are immediately obvious -- a few hours of "screen time" has very obvious negative implications. There is also a quality of addiction to it all. The computer/smartphone is all.