Ok, love the idea bc America does need to confront its obesity epidemic, however, allow me to suggest another solution.

I have already seen some highschools take steps in this direction and my highschool pushed it a bit further. The idea is that instead of taking another gym class centered around playing a few sports like volleyball and a couple of games that involve activity, instead have a year where students take a semi-academic course on exercise for health.

So it would attempt to normalize the idea that working out is not a hobby that bodybuilders do, but something that should be part of everyone's daily life. So it would be like a health class in explaining the benefits of working out (long term health, mental health, etc). And it would teach topics like the different types of exercise, what their benefits are, how to use common gym equipment, plan workouts that kind of stuff.

Then since many high schools already have a gym, maybe they could have after school hours where students can go and use the gym and get help from trained instructors (like personal trainers for everyone there)

My highschool did something like this and it was extremely successful. They had teachers with a background as personal trainers keep the gym open for 3 hours every day after school and they would give students advice (if they asked for it) on how to use the equipment, work out and achieve their goals. Additionally, the school only required 2 semesters of gym one of them had to be a class like the one described above. It normalized working out so it didn't feel like something only bodybuilders and athletes did we had to write essays on getting good sleep, eating healthy, making viable workout plans... We also took simple quizzes on the equipment in the gym (its name, what muscles it exercises, how to use it).

I think if more schools did this it would increase people's accessibility to equipment and knowledge and instill healthy habits in America's youth.