I was born in -91, and the first time I had access to a computer that I could actually install things on (not school/library) was at the age of 15, and no internet access at home until about 2 years later. I live in Finland, but I imagine there are lots of Americans with similiar experiences. Nowadays it's also possible that the those people will have a "consumption only"-device rather than a "real" PC they can do things like programming with.
... apparently you don't know any poor people. Most today MIGHT have a tablet, and probably have a cell phone, but a desktop or laptop is a luxury.
even in a third world country like brazil, every single person i know (from lower to high classes) has access to a computer AND a smartphone (even the poorest person has one, it's quite interesting).
Did you not realize that US education is on par with a third world country in a lot of regions?
Access to a computer has little to do with education anymore. If someone wants to tinker with computers, they can use one in a library or just get an old one for <$100.