I would strongly caution against kids pushing for the tippy-top highest level class to take when they enter BS. That goes for math, language and any other subject…and particularly for pushing to do so in all subjects.
Courses identical in name are not the same at public school, local private school, online school and BS. The latter is more demanding…based on our kids’ experience and the collective wisdom of the CC community.
Furthermore, kids’ first year at BS is disruptive to say the least. They are not continuing along their subject sequence under the same conditions, living in the same house, having laundry done for them, being told when meals are ready, having the same friends they’ve had for years, etc. The conditions of the social/life experiment have completely changed.
Kids are well-advised to pump the academic brakes a bit entering BS. It sets them up for a very successful experience, instead of struggling to recover for year(s) and being left with an overall bad impression of the school or subject(s).