"Parental investment theory, a term coined by Robert Trivers in 1972, predicts that the sex that invests more in its offspring will be more selective when choosing a mate, and the less-investing sex will have intra-sexual competition for access to mates. This theory has been influential in explaining sex differences in sexual selection and mate preferences, throughout the animal kingdom and in humans."
If you are under 31 you can apply for a working holiday visa which grants you an availability to stay there under relatively lax circumstances but limits work to around 28 hours per week I think.
It could be learning mathematics, physics, playing instruments, composing, writing, walking, meditating, making films, going to museums etc. It feels like endless possibilities for me. I think having the freedom to do something that you want to do rather than contractual obligation is one of the wonders of life. It may be different for many and luckily if you live in a place where you have the freedom to choice, those who wish to work can work and some of those who have the privilege of FIRE can do so too.
For the Cynics, the purpose of life is to live in virtue, in agreement with nature. As reasoning creatures, people can gain happiness by rigorous training and by living in a way which is natural for themselves, rejecting all conventional desires for wealth, power, and fame, and even flouting conventions openly and derisively in public. Instead, they were to lead a simple life free from all possessions.
https://en.wikipedia.org/wiki/Parental_investment