Out of a class of 650, approx. 50 were permitted to take AlgebraH in the 7th grade and GeometryH in the 8th grade. (same as the HS curriculum) The school does not even show that this super accelerated class exist on their website to avoid parents asking for their kids to be put in it. After my daughter’s cohort went through, they increased the test scores to get in because the bottom 10% was struggling.
I would only support acceleration if the school 100% recommends it and your kid loves math/comes easily.
**She ended up back in the regular course of math because she attends a special science/dual enrollment program that started everyone with Algebra I & II in 9th, Geometry in 10th grade but she has a very firm foundation in the fundamentals which made all subsequent math classes in HS relatively easy for her.