Unless the kid is taking the prereq in 8th grade, one hopes that nobody is putting pressure on them to skip ahead.
Regardless, it is not uncommon for a BS kid to repeat their math or FL class. Just because they took geometry and Spanish 2 in 8th grade does not mean they mastered those courses to the BS expectation
On the flip side, they don’t make you retake a class you have mastered.
Regardless, 99% of the time, the school is accurate in the initial placement, even if the kid (or the parent) disagrees. For the 1% they get wrong, it’s quickly addressed at the beginning of the year.
Of all the things to concern oneself about, this is not one of them.