The poster said their kid wasn't interested in fiddling with workings of computers before social media was a thing, so I don't think that's the problem in their specific case.

There's always been low hanging fruit. There were video games from the dawn of computing. I played games and did programming, sometimes more gaming, sometimes more coding. My mother worried generically about 'computer time'.

Many of my friends had games consoles, or computers but they only used BASIC to load games from cassettes. They turned out fine. None of them ever expressed the slightest interest in creating anything but they went on to do other useful things, like teaching or social care.

We are way, way too quick to assign complicated sciencey sounding explanations to stuff earlier generations would have described as common sense. Games are fun. Reading is fun. Talking is fun. Parents used to despair at the hours their daughters would spend on the expensive telephone instead of doing more child-y or creative things, and so what? They all worked out fine. The world is not short on creative people.