This is a hypothetical post - I don't have kids, and don't plan to have any for health reasons. Am a long term member and regular namechanger, am not a newspaper reporter, but I understand if people are wary at threads like this.
Although I don't have kids, I do think in detail about how, if I did, I might want to raise them; one thing is that, at least during primary years, I wouldn't want them to have any of the gadgets that I didn't have growing up in the 80s, and as far as poss only to be exposed to broadcast TV at home (no recorded or catchup - some other people had videos when I was a kid, we didn't), and my own home based internet use would be very limited and mostly in the study. (This all assumes similar standards of living to what my own parents had, including space for a study in the house.)
I feel that schools like Acorn: www.theguardian.com/education/2015/sep/29/the-no-tech-school-where-screens-are-off-limits-even-at-home
with zero screens policy for home and school go slightly too far; some TV is good to have contact with the cultural context, and I am glad I learnt some programming in primary school (computers then felt like a work tool, not an addictive leisure activity - I only knew one kid with games computers and they were really bad at the games).
Do people manage to get nannies who won't put kids to play on tablets and phones and use them in front of them? Older nannies? (I realise all this would be undoable using childminders and is a luxury or SAHP choice!)
I would be a lot more laid back re teens as I think it's really important to be involved in contemporary pop culture at that age, but I would want a kid to have a grounding of how to manage / be/ entertain themselves without the web and of "slower" ways of thinking, and of not expecting the instant gratification of TV on demand. (Really, I think it would be great for the internet to be for adults, like driving is, you'd learn more social skills before you used it, as my own generation did, never having used it as kids, but that's not how it works, sadly.)
I did know one of those families with no TV when I was a kid (which was the 80s equivalent) ; they were very serious people, but I found their house rather romantic and intriguing.
I'd guess that because this is the internet, the families doing this might not be around to talk about it, but maybe people tried and abandoned it because it was too difficult? or have friends who do?