More than currently do. Rates are low in higher income countries.
We never really teach these things, which is a shame because I think they have such value over time.
I've spent a lot of time helping people with budgets and I've found a few things to be common. To make this easier I'll just say "people" as a general thing of those coming for help.
1. People don't get why they're running out of money
2. They don't know what they're spending
3. They've not connected the idea that knowing what they're spending money on is important to figuring out where their money is going
This isn't a slight, it's just interesting to see that this connection has never really been made. Money is treated as an emotional thing rather than a mathematical thing.
And this is those who get to the point of seeking help - they're actively asking for help and have never tried just tracking their spending. It's an entirely new concept.
The next big thing is that people talk about unexpected costs coming up and have never stepped back to look at the issue more broadly.
Some find birthdays an "unexpected cost" but they're not actually a surprise if you are able to look ahead more.
More unexpected are repairs and replacements. But stepping back although your tires were a surprise this year and your brakes a surprise last year, the idea that something would need dealing with on your car isn't.
The 3-6 mo savings is really a goal before suggesting moving on to riskier investments rather than "oh just have this". One day of spending is better than none. A week is better, a month better and 3-6 is better still. Beyond that the benefit drops massively, so you can start putting away money for much further in the future.
It's boring but that's imo because there's not much to basic personal finance.
If you spend more than you earn you are screwed.
If you earn more than you spend, you can build up savings.
If you are right on the line, you're either statistically shocking or your spending should move one way or the other.