Now and Later
You know how kids will put up with long-term, potential pain in order to escape temporary but sure pain? Okay, that was a terribly unclear question. Imagine a kid gets a splinter in his finger. He will put up with that pain, which would go on for days or weeks, rather than have you dig it out with a needle, which would hurt for just a minute but prevent infection. Or they would rather not get a shot, although it would keep them from getting sick.
Well, as adults we can see how immature they’re being. Of course it makes sense to endure a little discomfort now in order to prevent future troubles. Then we go and purchase an adjustable-rate mortgage and a car we can barely make the payments on, because we’re so going to get that promotion. And then we don’t floss.