> they introduce variables in 2nd grade

you are not familiar with public education here. In one coastal city, more than 40 languages are spoken by students at home, with Spanish being a large component.

What I am saying is that 9th grade through 12th grade public standard curriculum is the topic of debate, with some groups, today, advocating removal of "advanced placement' courses in a broad way.

There is massive difference between certain particular schools, and the broad standardized, State-assigned curriculum.