In the school and system I work within, (Aust-Catholic system) we all have to have training for Asthma-use of ventilators and sprays and something called an asthma management plan, whether PE teachers or not, and PE is compulsory until 16. In my line of work, I have to support all of the different disciplines, as a curriculum coordinator (supporting the teaching and learning of all subjects-not a department head of one subject alone) and I do think exercise and physical movement is really important for students. I do remember thinking of it as a 'drudge' when I was at school, even though being a relatively active teenager at the time.
It is a bit like learning some of the more boring aspects of English language or Mathematics-you don't really appreciate it as a teenager, but later on you can see the real benefits of having to learn or practice the skills as an adult.