We don't teach specifics like 'how to do your taxes' or different retirement account types. But we teach general skills that enable those.
And frankly, those change too often (both time and jurisdiction) and are far too broad to be very useful.
When English teachers discuss Shakespeare, or history teachers discuss analyzing documents: they are generally not expecting students to have to read those particulars, but instead aiming for attainment of a more general skill (literacy, analysis, veracity).
Basically, I think it's better to just teach math and literacy in general. Then if they want to know how APR is calculated, they will have the ability to research it.
School cannot possibly teach everything one could want or need to know in life. It's more about setting a foundation.
In my area (Fairfax County, VA), home ec class in the 90s was cooking and sewing. The "economics" part disappeared from the curriculum sometime before I entered high school.
Also, many college-bound students weren't allowed to take the class. It was a known waste of time - counselors actively pushed students towards more useful courses. In my case, that was a year of Latin as a senior (on top of 4 years of French).
An real home economics class - with personal finance as a primary focus - would be very useful, IMO. I'm sure we covered interest rates somewhere in high school math, but it was purely academic - not taught in terms of useful life skill.
Home economics has always included a variety of household skills, and was never limited to just personal finance.
there was a 7 week segment some time in high school that discussed economics, but it was a sort of math-free intro to macroencomics, as i recall. ("here's what the fed does", "the stock market exists", etc)
Unfortunately the financial literacy we learned in home economics was limited, mostly around budgeting. We had some other classes that covered other finance/life aspects more but they were non-mandatory and post when many people left school in those days, probably would have been better off incorporated into home economics.
An actual home economics course - one that covers compound interest, net present value, discounted cash flow, different asset classes, efficient market hypothesis, supply & demand, and reading financial statements - would be hugely valuable to kids.