When I was a kid, this wasn't something I could afford or that my parents were willing to pay for. I did oftentimes use the library computers, but they were locked down (of course, half the fun was finding ways around that.)
I was very lucky that my middle school (in a fairly low-income area) was given a grant by NASA that allowed them to supply all of us with laptops during the school year. I surely wouldn't be where I am today without it.
In some respects, a modern mobile phone has more in common with minicomputers than minicomputers had with computers before keyboards and file systems. Being able to interact with computers in a meaningful way transformed computers from programmable calculators and data processing machines into something entirely different. I would imagine that more people have seen those archaic computers in museums than during their service life simply because there was no need to interact with those computers back in the day. Even a web developer has more direct control over a server in a data centre than most early programmers had over early computers. (At least those used in businesses. Computers used for research were a different story.)
(Hurrey for Termux)