One must also keep in mind that the man of the 18th century achieved the necessary milestones to become a self-sufficient adult by his late teens. He will have already lived a full life at the age his 21st century counterpart crosses the starting line.

And absolutely, rational and knowledgeable is certain. But we seem to treat their edicts as the height of infallible perfection in government, and view it as anathema to even suggest ideas that don't precisely align with their statements.

really? i tried sourcing this and I can see there were only two in their 20s (26 each) out of 56. no teenage. 2 in 20s, 17 in 30s, 12 in 40s, 9 in 50s, 6 in 60s, and 1 in 70s (well, 70 exact - Benjamin Franklin).

"As it turns out, many Founding Fathers were younger than 40 years old in 1776 ... more than a dozen of them were 35 or younger."

Peter Salem was the youngest signatory at 16.

Alexander Hamilton, 21. Thomas Lynch, Jr, and Edward Rutledge, 26. George Walton, 27, and Thomas Heyward, Jr, 29.

That being said, I take the National Archives as a more authoritative source than a Slate article!