I'm thinking ahead of this myself for my kids' sake. Some approaches I'm considering:

- NextDNS with device rules/filtering (primarily for adult and malicious content). This also has monitoring capability, don't think I'll use it though.

- Social media restriction in the early years, but eventually allow access through a notebook. This is a more useful creative tool and will mediate passive consumption, as they won't carry it everywhere with them. Instead it's a log-in at home, when time permits.

- I can't imagine a scenario where my kids "need" a phone, but if so, dumbphones are an option

Some parents I guess will opt for overscheduling kids as an offset, but I think unstructured time is important. Just so long as it's not entirely spent on media consumption.

Mostly, right now I should be setting by example. In instances where kids are playing alone and I don't have to be hovering over them, I'm avoiding excessively reaching for the phone and instead pick up a book. Or do nothing.