Implementing Mandatory Health Education and Workout in schools?

I'm doing a speech on obesity in children. We have to come up with a solution to solve a problem in america to change the status quo. I believe that if we implement a mandatory health care cl that involves a 30 minute workout in schools that was given to children in grades K-12 and was mandatory to recieve federal funding that it would help the problem in obestity. We all know that parents play a big part in obesity of their children but mostly because of them being uneducated healthy health care practices. If we do this it will educate the children and get them in the habit of working out and when the children have their children they will be less likely to be obese because their parents will be educated....do you think this is a good idea for my speech?