> But even having a mortgage at all at 24 is pretty impressive...
Impressive in what way?
> ...and he's probably still a ways off from his peak earning potential.
That's an assumption, but even if it's probably true, to what end? The issue most working Americans face is that the cost of living rises faster than their wages.
> Then he might have a bit more income for discretional spending.
So...earn more so that you can spend more. This, in a nutshell, is the insanity of America's consumer culture.
> In short - yeah it's a grind, but it sounds like he's making responsible decisions and hopefully they will start to pay dividends in another 5-10 years.
Young people who are fortunate enough to be in a position to make "responsible decisions" should obviously do so (within reason) but this "grind for the future" mindset is also part of the insanity of American culture.
There are places in this world where people in their 20s can enjoy their youth without having to worry that doing so could doom them to financial distress for the rest of their lives.
I don't think that working hard or investing for the future are insanity.
I also didn't mean to imply that I didn't enjoy my early 20s. My job was difficult but also interesting and fulfilling. For recreation I was into fitness and the outdoors, which can be done on the cheap. I was in a serious relationship with my now spouse, so I wasn't lonely. It was a very fulfilling time - we just lived very frugally.
Not saying that everyone needs to follow the same path. Or that we can't do better. Or that times haven't changed since then. Just that the parent's example doesn't sound too far off from my own experience in my early twenties, so I don't necessarily see them as doomed to a life of misery. You can certainly do worse.