If what you really want to do is become a PT in the military...then look at the Health Professions Scholarship Program (HPSP) to see what is required for the Army and Navy to enter as a PT and how they support the education through scholarships and salary. Best wishes. If you really want to be a PT, then don't go to a service academy, you will spend a lot of time doing other things that are not what you really want to do. However, if you want to go to a service academy and then become a PT later in life, you can do that too...but you will spend years doing other things (great and interesting things--but not working on a degree toward becoming a PT.) Hope that helps.
Also, thank you Mr. Mullen for the strong second. As always, your input is greatly appreciate by the applicants and by me.