Many people go through life with their head in the sand.
They either ignore much of what's important in life or they attempt to minimize it. All sorts of excuses are made for delaying what shouldn't be delayed. All of us know people in our families, in our neighborhoods, at work, etc. who just don't take life as seriously as they should. Their priorities are wrong. They don't have much gratitude for the past or the present, and they aren't doing much to prepare for the future.