Cultures that tend to produce citizens who are happy have a strong sense of community involvement and caring.
Such cultures do not emphasise accumulation beyond what is needed for health and reasonable comfort.
In such cultures the skills needed to promote adult behaviours are learned early and simply by using those closest to you as examples.
This is not the world we live in. Vast, unlimited choices make life more complicated and scary. I didn’t support myself until I finished my training at 31 years of age.
The Tibetan Buddhist definition of wealth is having what you want; I knew a man who had anxiety attacks whenever his financial reserve dropped below 6 million dollars.