so the criteria for success is 'making six digits' which you correlate to hard work and intelligence.
That ignores the following cases:
- Intelligent, hard working but not high income ( Academics)
- circumstances, today you make 'six digits' but due to thousands of variables ( Market, industry, health) you lose the ability to generate that income after having kids
- being hard working, intelligent does not make you any better parent, in fact there is a case for the opposite where you cannot dedicated time to the raising of children.
- Anecdotally I personally know many people who are making six digits, who would probably make terrible parents