People in their 20s and 30s are the happiest when they can be independent. The fact that you can build your own economy, independent of your parents, boosts your self-confidence.
But in the long run, when you're the least earning and when you're most active, you have a high ratio of spending compared to revenue. But we have to turn the other way.
A 30-year-old young man is given 35 years, and if.....
