I heard that back in the days, people used to just go when their work was done on the farms and there was no concept of 9-5 (these days seem 24 hours work). There used to be a lot of holidays. Is that true? If it is, then given the abundance in technology, why our work hours increased and why do we have such weird lives that we live to work?


Capitalism
A handy word that means so little it’s never wrong.
Bingo. Sort of. It includes a lot, to go with the massive breadth that the question entails.
the biggest evil
Are there any other systems, or point in history, where a country’s population could live without working?
I don’t know whether to assume this question is in good faith or not. Can you restate what you think the OP is asking? It’s not about whether there was ever a time when no work was needed.
I’m not interested in
wasting my time against a sealiondebating capitalism.I’m not coming from a defence of capitalism. I’m just pointing out that people have had to work in some capacity to live all throughout history. People would still need to work to live under any system.
Nobody said otherwise.
… the title in OP asked, “why do we live to work, rather than work to live?”
The response was “capitalism.”
So: precisely under (not-capitalism)… we could “work to live,” rather than “live to work.”
That’s true, but the point is in the current system we’re working a lot harder than necessary in order to benefit a few people at the top
Working in what context? There are native peoples all over the globe that work to live and not to enrich a single sociopath.