Old enough to know better...
They wanted experience of age. A 35 year old man back in those days was an old man, peole aged faster because life was much harder.
And if you follow the law closer and in the meeting when the Constitution was formed the parents have to have been citizens of the United States also
Instead of specific age (which back then many were well learned or into business, had learned and lived by morals etc by their 30s) they should have listed those things out more. In our times recently we have people playing pretend like children yet running for or otherwise being put into positions inwhich to do them well, need great maturity
would three years old work for you?
PINHEAD !
Average life span in the early industrial era was 38-44 years old. A resident within the US for 14 years would have been the equivalent of half one’s lifetime - all of their adulthood. (Of course, genetics aside, and same as today, the wealthy, able to afford/access good medical care and diet, had a longer life expectancy than the average man)