Being actively miserable 8 hours a day will just ruin the remaining 16.
if someone is paying for this, then it must mean it is useful to the one doing the paying. If you're not the one paying, you also cannot decide whether it's useful to the payer or not.
It is perfectly rational to choose lower income occupations for your own reasons. Income maximization at all costs is how you become a pawn in someone else's game even (especially?) if it makes you rich.
Don't plan to have fun later, because later may never come.
You didn't exist before you were born, so you had no idea about anything.
You "die" when you go to sleep.
So we could say most of it doesn't matter - of course if there isn't anything after our living here.
The point of the commenter was that if we wait to have fun til later, there may not be a later. Life is about striking a balance of having fun now and sacrificing now so that you (or your family or community etc) can have fun later.
"the remaining time"
Doing what is intrinsically valuable to you hinges on you still having access to the person you are. Don't take that for granted. A lifetime of settling can easily drive that out of someone, but planning to settle before it even started, as the only option, surely will. How could it not?
Old men [0] living it up because they never did while they lived is the worst. You can't regain a sense of justice, curiosity and innocence once you let it go and out of sight. You cannot have either without the other two, and none of them come back once you misplaced them as something you don't need "for now", but something very cringe and sad can takes their place, and it comes with this conspiracy of not mocking one another, of pretending to be fully featured people, as they stumble and babble into the sunset.
[0] And I say "men" because this is very much a male issue. You don't hear many women talking like that, at least I can't even remember one.
Too bad you have to work super hard until you drop dead, never managing to build that nest egg. Surely you just did not work hard enough. Soo sorry, but its all your fault anyway.
Or maybe you did manage to do that at a tender age of 60, perhaps even 50 or 40 if you were super lucky/smart. Too bad your best and most creative years are past you and you have no family (or spent almost no time with your kids, who are now alienated grown ups). Such is life, you know.
Meanwhile, the kids of the rich live by a different set of rules...
And what if the FIRE plan doesn’t work out? Work generally takes up too much lifetime to spend that time on doing something one doesn’t find meaningful. That’s not a way to live a fulfilling life.
work should not be considered to have to have intrinsic meaning for it to be worthwhile - you merely need to make sure your pay is worthwhile.
Find intrinsic meaning outside of work. The best way, imho, is to find the highest paying job you can, work super hard and earn maximally, until you built up a nest egg from which you can draw a living off indefinitely. Then, use the remaining time you have left to pursue what you find to be intrinsically rewarding.