I have no problems with parents kisssing their children on the lips, as long as it's "appropriate." But when I went walking today, I observed a young black man who kissed his much whiter daughter on the lips twice, quick pecks, and suddenly several pedestrians and one passing motorist was razzing him. Calling him a "pervert". But it wasn't a pervety kind of kiss. And I got to wondering if it were a matter of society going, "it's okay for a mother to do that, but not a father." Which may be the case. Or whether it was because the daughter was obviously lighter skinned than he, in which case it would be possibly a racial thing. As in, "it's okay for a man to kiss his daughter on the lips if they're the same basic colour, but not if the father is darker than the daughter." Since I've never seen passing people razz a white man for kissing his daughter on the lips, though the only ones I have seen doing so are very similar in colour to their daughters.