The word aerobics comes from two Greek words: aero, meaning “ability to,” and bics, meaning “withstand tremendous boredom.
Teenagers are bored. By everything. Show a teenager an actual volcanic eruption, in progress, featuring giant billowing clouds of smoke, hot rocks raining from the sky, lava floes destroying entire villages, etc., and the teenager, eyebrows arched with sarcasm, will look at you and say, "Gee, this is swell," then return to the rental car, turn on his portable CD player, and listen to a band called Stomach Contents.
The old system of having a baby was much better than the new system, the old system being characterized by the fact that the man didn't have to watch.