A Danishstudyfoundthatcollege-educatedmotherswhowere 31 to 34 whentheygavebirthearnedaround $5,000 moreincomeovertheirlifetimecomparedtotheaveragewomanwith a collegedegree, whereascollege-educatedwomenwhohadtheirfirstkidbefore 25 earnedaround $80,000 less.