"Balance a checkbook" doesn't have to mean a physical transaction log. It just means keeping track of expenditures and deposits so that you know the money in your account is sufficient to cover your purchases. You'd be surprised how many people my age can't manage that. Also, at first, I read that as "Who owns a Chromebook?" lol.

Outside of using cursive for my signature, yeah, I've never used it in real life.

If you want to learn something you will.

True, but we learned computing because we had to.