|>>|| No. 442617
I respectfully disagree, OP. This is the kind of thing where hard data (with clear definitions for variables and transparent data collection methods) tends to come in really useful, because it's so easy to get swept along by general anecdotes when they're part of our personal experience.
But there are a load of possible biases that come along with asserting a broader conclusion like this based on just your observations. It's not necessarily that your observations are totally wrong, but there are factors you may not be taking into account.
Survivorship bias is one that stands out, here. The ones that worked hard and got their house prove your theory; the ones that perhaps worked equally hard and did not must not have tried for hard enough, or for long enough, or must have slipped into a negative mindset all of their own accord rather than as a result of their experiences.
Further to that, though, there are plenty of unseen mechanisms that might put someone in a better position to buy a house. It's also possible for someone to work hard and have plenty of advantages that aren't apparent to the outside world; a series of smaller loans from the bank of mum and dad while working things out, "social capital" in the form of networks or informal sponsorships, a stable relationship with a dual income, choosing a professional sector with a far more manageable set of demands for higher pay, and so on.
Putting all that aside, though, >>442616 is fundamentally correct, and has probably worded this better than I have. The system is certainly rigged to a degree, but those who do consistently perform the "right" set of actions will have a chance of success, while others fail despite trying, and others guarantee their failure by not trying at all. I very much doubt that everyone belongs exclusively to the last category at all times.
I think what you've really struck upon, OP, is the importance of what psychologists call the "locus of control". No one succeeds without exercising an internal locus of control, but not everyone will succeed even with it.