Several days ago, my friend and I were discussing about our lives. One of the things that we agreed on was that 20s is definitely the best ages to be alive! I'll explain the reason why, but before that, let's take a look at this picture below.
The picture differentiates people into three types: young, adult, and old. Most of the time, the descriptions are correct: young people usually don't have a steady supply of income, they can only rely on their parents for money. Adult ones, probably just finished their study, are occupied with their first jobs, and are running out of time. Old people, having retired from their jobs, are (supposedly) having a lot of time and money, but not the energy.
Of course the description are not always true. For instance, not every adult can get a decent job that pays well; some are stuck in a job that drains all of their energy but doesn't pay that much. Also, not everybody can retire with loads of money; some haven't acquired enough during their younger days and are still 'forced' to work even when they're supposed to retire. Yes, shit does happen.
So, what does this have to do with my notion that 20s are the best ages to be alive?
It has to do with the fact that the balance of these three components are the key to your overall happiness. Problems start to arise when one of them are not sufficient enough: not enough money, time, or energy.
The biggest benefit for us 20s is the combinations of traits. Our energy is still overflowing just like the younger ones, but unlike them, we already had a steady supply of money. We are not too burdened with responsibilities like kids or family, and we can still experiment with our career (which is hard to do if you're already in your 30s or 40s). We have some experience with life, but not too much that it made us cynical (like some old people would become).
The biggest challenge (not the only, mind you) we will be facing in our 20s is the time management! If only you could manage your time well, balancing between your work and other stuffs, you can do whatever it is that you wanted to do in your spare time. Combined with your limited-but-still-enough supply of money, that's really a sweet spot to hit on!