It was easier with the older one as phones and tablets were not as pervasive so I can understand it has become harder to do.
I also think another thing that benefitted them greatly was that we did not have a TV ( https://pietersz.co.uk/2008/05/i-have-no-tv/ )
I also thing another issue is that parents are also addicted to devices so pay less attention to children. its not the only issue, but it makes it worse. It was epitomised for me by a woman who, when her son refused to put down his tablet on a train trip, took a photo of him on it and posted it to FB for advice.
but thing is, it was not a whole PC. it was just the keyboard...
i played with that keyboard for 1 year before my family could afford to buy the rest of the PC.
in that year i learned the position of every key and would show off to friends how i can find any key, with my eyes closed.
A pre-millennial computing experience would have the benefit of not having that sort of bullshit. For the patience-building experience it could be real floppies, but putting the games in an emulator is also an option. I guess Windows 11's "Install Copilot Edge OneDrive 365? [Yes/Maybe later]" popups means you'll have to go Linux...
After a while, expose them to programming through AMOS or Blitz Basic.
just a regular PC with keyboard mouse monitor and the unit.
edit: maybe a DVD unit for reading AND writing disks.
... which gets ever more hard to provide, sadly. Many people can't really afford an appropriately sized home - but in contrast to "earlier" times, can't send the kids outdoors as a replacement either as they're unsafe due to car-centric culture, the death of third spaces and, in the US, gun and other violence.