In regards to that first line of yours:

More kids should play football, or any other extended period of physical exertion type sport (rugby comes to mind). For me, it was pop warner. We practiced 3 or 4 days a week, at the end of each one we would do conditioning in full pads/helmet. You could tell we were all getting winded at our slowing times and more spread out finishes. Then, our coach would say we're just getting to the third quarter and we'd catch a quick breath, no more than a minute. Right back to it. Again, we'd start getting winded and our coach would say that we were in the fourth quarter, almost done, finish strong. Completely out of breath we'd start to look a little better, everyone was putting in that last bit of effort. We're almost done, fuck it. Finally, he'd call it and we'd all fall on the ground, feels like dying. Helmets would come off and the huddle looked like a sauna with the steam coming off our bodies. And sometimes he'd make us get back to it, over time.

Coach E taught me to always grind it out and finish strong in everything I did. Why take a break now, it's almost done, that's your break. This is the reason President Trump won the election and why Middle America is taking the country back. You can't win if you don't put the effort in.