Most retirees are racing against the clock still - they aren't getting ever richer, and instead crunched the numbers and retired with what they hope is enough to get them to their deaths.

Wealth is a side effect of age. Most millionaires and billionaires are seniors. Despite being in the top percentile in terms of capital, most millionaires they don’t feel financially secure, regardless of their age. I think that insecurity is understandable.