[verulito]

The problem with "common sense" is that Americans have so little of it. Even though it's entirely legal, to most Americans a 40yo dating a 20yo may as well be illegal. And yet those were the ages of my grandparents when they met, who remained married until death and produced a wonderful family.

[InitialLastName]

Americans can't feel that strongly about it... the current president and his (current) wife are 24 years apart in age.