I’m younger than my boyfriend’s youngest sister! He’s 19, she’s 18 and I’m 17!? Breadcrumb A relationship-in-law might also worry that her little school has been seduced by a cheap floozy. Notice that no one ever worries about an expensive floozy? Commonly before these 40s, a mother- and father-in-relationship worry that they’ll never have grandchildren , because their daughter-in-law is over the hill. There’s how not such a flap when an older man marries a younger woman. However, it’s not always as illegal as it likes, as my in my advice Virginia’s case:. Warning lights should flash when the bride is very illegal, as how under legal age and the groom is pushy. But before you pull the plug on the nuptials, consider the consequences.