Likely the reason to marry quite young was b/c many people died before the age of 40 ... Many died from diseases that we no longer contend with; but also because of poor sanitary practices and living / working conditions. Large families were typical b/c it was not uncommon for half of the children to perish before reaching puberty, and also b/c many hand wore required for all the manual labor.
Brietbart/London
January 10, 2016
by Patrick Howley
"Bill Clinton's FBI Head Is Called In to Show Bill Clinton 'Not Present' at Jeffrey Epstein Underage Sex Orgy"
http://www.breitbart.com/big-government/2016/01/10/bill-clintons-fbi-head-is/
Depostion of Jeffrey Epstein / Exhibit C [explicit]
http://cases.bms11.com/Documents/FL76/09-34791/ECF_DOC_1603_10567451.pdf
Ot Oh!