My understanding is that the DE courses are a combination of both - some with other HS students and some with college students. All of the courses would transfer to any FL public university. For a variety of reasons, though (weather, FL politics re: education, availability of a well-funded 529 from grandparents, etc.), it’s hard to imagine her wanting to stay in FL. It could happen, but it seems relatively unlikely. That would certainly be the most appealing option for many students, but it’s less of an incentive for us.
Thanks for the additional info on IB courses - I’ll look into that!!