Bro's gf and sil like to ask my son to kiss them by the mouth. I don like the idea but everyone else seems ok about it. Why cant they give a peck on the cheek or son kisses them by the cheek? What i feel is, can my son happily happily kiss anyone by the mouth just because the person likes him? Eg: stranger by the road?(ok im very extreme, but just wanna state a general example)

Yikes! Kissing at the mouth is a big NO NO to me .. I don't even do that to my own kids cos I do not like the idea of germs spreading by kissing by mouth especially when LO is still v young . Can always kiss on the cheeks . Sorry but I'm jus more paranoid . You can jus tell them politely that you are Not comfortable with kissing at mouth . You are the Mother , u have absolute right to tell them