I chuckle every time I remember that when my dad used to interview secretaries to hire ~20 yrs ago, he'd always ask "Can you use computer?" which sounds like a quite funny question to ask a 20-something years old person nowadays, let alone kids.
You don't have to know anything about computers to use them now. I would expect for most non-technical users, the computer consists of the web browser, and maybe Microsoft Office and a few games and that's it.
It's good that you don't have to know how a computer works to use it, but there are lots of downsides to that as well.