"Dance has a wide range of physical benifets: improved condition of your heart and lungs, increased muscular strength, endurance and motor fitness, increased aerobic fitness, improved muscle tone and strength, stronger bones, better coordination, agility, flexibility, improved balance, etc."
Reasoning: all of the benifets listed are requirements for becoming a sport, dance is just a different way of obtainting those physical benefits. Just because dance is different from some other sports doesn't mean that it isn't a sport at all. Gymnastics is in the olimpics yet another some people still say it is not a sport, some people don't realize that sports are different. That would be like comparing baseball to soccer, they aren't even close!