Healthcare experience is not a waste of time. People that have experience will have an easier time getting into and during school itself. If your application is weak then maybe it is better to spend the extra year or two to become an RT or paramedic. Becoming an EMT is relatively quick way to get experience (only 6 weeks to 3 months of training.) It may be a waste of time for some and the only way others may get accepted, it depends on the applicant. Also, if you don't get accepted you'll be able to earn a decent living.