The dispensing of advice is a paternal tradition: Dads pretty universally like to stick their two cents in. So, in honor of Father's Day, Alison Southwick and Robert Brokamp are dedicating an episode of Motley Fool Answers to giving some back, with money tips for men at three different stages of their parenting careers.In this segment, it's advice for fathers whose offspring have, relatively recently, become adults themselves.