That was one of my "wait, doesn't everyone do this?" realizations: Most people do not regularly look at their own finances, know how much they spend on what, and even roughly know how much money they have in their checking account! I could tell you how much I've spent on groceries, gas, restaurants, clothing, and so on, to the penny, and how it tracks vs. my budget, accurate at least as of a particular day. I can tell you to the penny any of my current account balances, cash, investment, or debt. But when I mention this to people, they look at me like I have a horn growing out of my head, like it's really weird and obsessive.

I've been in an HN thread where people claimed that it's easy to lose track of your subscriptions and accidentally pay for a service for years that you don't use. Like, really? You don't even look at your credit card bill and see what you're paying for, even monthly??? You really just turn on autopay and never even look at your bills?