With computer, video game, television and smart phone usage of today very few have the motivation to get up off their rear and do something productive that takes physical action. Pretty much any  activity or hobby that takes physical exertion is in major decline. Just watch any movie that is at least 20 year's old and you will see a stark contrast to what we see today. Back then most women didn't look like men and were petite and usually pretty and NOT built like a linebacker, like is so common today. I went by our local park on the 4th of July at 2 pm and didn't notice a single person there, 30 year's ago it would have been packed with people and family reunions, not so today!