They started lowering math requirements when I was a freshman in high school in 1952.
wow, that was like, 100 years ago.
Graduated HS in 1975 a year early. Intermediate algebra was usually freshman and trig not mandatory to graduate HS but was offered for as an elective. If you wanted calculus they'd let you go to the Jr College and get credits. I remember in 1972 using my dads Trig book from 1949 as a reference to my book. No BS math stopped somewhere in the 1950's.
Nowadays you have kids in college taking basic math with the idea they want to be physicicains assistants in five years but it will take them four semesters to get to Trig so even their JC will be four years.
The best tutors in the math tutorial at the local JC are sixteen year old home schooled kids. Not all but enough to prove common core and whatever else they (do not) teach in public schools is complete nonsense.
Common Core math and English sure is confusing. No idea what the logic( if any) is behind their confusing teaching.