Next Generation: Why So Spoiled?

I'm trying to figure out what is wrong with the next generation? Is this a right of passage when you hit the age of 50? It seems that my parents must've had this same question. What is wrong with our kids?
The reason I'm having this question, is that my wife and I work very hard and sacrifice in order to have what we have. We believe we have provided a good example for our son, but it wouldn't appear so by his behavior. He seems lazy with no interest in working to better himself or to provide for a family in the future. He has none of the values and virtues that my wife and I have tried to provide by example. What have we done wrong?
Our son has told us, more than once, that he does not intend to work as hard as we do. I could buy this if he were born and raised as a rich kid. He was not. So how does he think he's going to get by in the world, if not by his own labor? Does he think the grand universe out there is just going to bring him frankincense and myrrh?
And it's not just our son. We have seen many kids his age saying the same things about their parents. They are not interested in working and sacrificing the way that their parents did. They like the comforts and privilege that those labors provide, but they don't seem to be motivated to actually do the work, and they have no concept of sacrifice. How did so many parents go wrong? How did we go wrong?
I look at how our country got where it is today. Despite a low approval around the world, there are still more people trying very hard to move here from other places in the world, so we must be doing something right here. We must still be a good place to live. So how did this country get this way? It seems to me that the answer is the hard work and sacrifice of those that went before us.
I know that our forefathers weren't perfect, and that not all were truly virtuous, but still, the general concept of being an American, working hard and providing a better life for yourself and your family, is still the American Dream. It is still an admirable goal, and the goal is still within reach of those willing to put out the effort and sacrifice, even for those of the lower incomes of our society. If you want it bad enough, you can have it.
My wife and I do work hard. We haven't treated ourselves to a vacation or anything like that in several years. It's time overdue, but we've been working towards the goal of getting our dream home built. If we were rich, we'd just hire it done and pay for it all. If we were the type to want immediate gratification and unwilling to work hard and sacrifice and be patient, we'd just get a loan for house we couldn't afford (like many people, and figure we'd get bailed out when our day of reconning came). We didn't do that. We chose to build as much as possible on our own, and pay as we go. We're not rich and so our house is not quite even halfway built. It's probably a 3-year project. When it's done, my wife and I will take a vacation.
We are focused.
Our son isn't interested in working. He wants the vacations. He wants the comforts. He wants the luxuries, but isn't willing to put out the effort for even a small portion of his standard of living. You'd honestly believe that he must've been the son of a multi-millionaire, because he seems to have no concept of work and sacrifice.
So what did we do wrong? I'm not comletely sure because I've seen other people who work hard and their kids are much worse than our's. Compared to them, our son is a real do-it-yourselfer.
As I right this, the small dog yard that we have, which is smaller than the standard yard at a home in the city, is a foot high in grass and weeds. One of the few chores we have for our son, he has repeatedly put off and not done. He seems to feel that his primary daily chore is to feed himself. He wont even get up until 1 or 2 in the afternoon, and we keep wondering how you can seriously be looking for a job when you refuse to change this schedule.
My wife and I have decided to give him the boot at the end of the month, with no choice. Maybe if life is uncomfortable enough, he'll finally get his nose to the grindstone, at least enough to pay rent and pay for groceries. The car he's driving is one that we're going to have to give him, because he never would budget and save for one, and to move away from us and get to work, he'll need some kind of transportation. So we'll sign it over to him, because we can't trust that he'll actually insure it. If left in our names, we'd be sued if he had an accident. So he's being rewarded for being lazy, but at the same time, kicking him out is a significant financial savings for us each month. I'm sorry it came to this. Why couldn't he have worked? Why couldn't he have done even one thing that would've shown an attempt at changing his ways? Why wouldn't he work to at least pay car insurance?
It's not like he's 14 years old and we're asking too much. He's 29 years old. Why is 29 too young to be expected to be an adult? How old do you have to be before growing up? I don't get it.
One thing is clear to me. If the next generation is this spoiled and unmotivated, the nation is in trouble. The pioneer spirit of our forefathers, that got us this far, isn't in the next generation. The American pop culture has been "pussified" (if that's not a word, it is now).