Just when did we become so lazy?

I have to ask this because I had noticed after we had gone out to eat at one of our favorite places a number of times, they immediately give you your check before you even finished your plate. The place is a Chinese Buffet. I later learned that in their culture it is normal to immediately finish eating then *leave* and NOT relax after eating. Something we Americans do with not thinking one bit about it. 

So I was wondering how far back in our society it came about that we started lounging about after eating? Rather than getting up and getting to whatever we needed to get doing to. Which may explain to why we actually have gotten to our being over weight. Instead of all these excuses of too much sugar, carbs., and fats will contribute to our being over weight. 

All I did when I was a child was have fun playing outside. There wasn't much Tv. watching except a few hours every saturday morning of those special cartoons I just didn't like to miss. I spent most of my time riding my bike or playing hide and seek. Came in for supper and then right back out till time for a bath and bed. 

The kids now don't move from in front of the Tv. or the computer. They have their video games to keep them company and don't even know what friends are now days. Or they spend time texting on their phones that their parents buy them by the time they are 8yrs old.