Average differences in traits based on age are sometimes quite large, enough that the value of using the prejucide for making predictions can exceed the unfairness downsides of stereotyping people.
Even if there were no average differences in maturity between age groups, it still might be rational to prefer older people for important roles like president or CEO for pure credentialing reasons. The reason is simple. 23 year olds have had less time to prove their maturity. Even if they were highly mature, their track record would be brief, and thus not conclusive.
Even if there were no average differences in maturity between age groups, it still might be rational to prefer older people for important roles like president or CEO for pure credentialing reasons. The reason is simple. 23 year olds have had less time to prove their maturity. Even if they were highly mature, their track record would be brief, and thus not conclusive.