Maybe they are just people who do not realize that they can save enough to do something big in life? Maybe they realized they could do this and have small happy moments and that's the best they could hope for? That's the thing that is lacking these days, people lost hope, any hope that they could live a better life.
They think that no matter what they do, they won't live a better life, and that means with debt the best they can do would be making a life that would have some stories to tell. I am one of those people, not that I spend it on irresponsible ways, but I lost hope, I can take out any debt I want, but I do not see any future where I can live a richer life, that just doesn't make sense to me at all.
And I am very sorry to say it's not good for one to be thinking that way no matter what. One should not loose hope especially when there's still life, we should have hope that we can do more than what we have done. But it's should be with great patience , endurance and time.
When you are busy building your own self to see the better part of your self, you are going to loose 99% of your friends. So it's better for us to learn how to discipline ourselves economically. We need to learn how to spend wisely and not lavishly. It leads to high rate of poverty when you always spend more than what you earn.
we should always be spending below our earnings.