We recently had a couple to stay. Old friends of DH. We have a 3.4 yr DS and their DS is rising 2. He's a nursery worker and she's a teacher and they live in Sweden.
Anyway my DS is very affectionate and likes to give kisses. When he met DHs male friend (P) he gave him a kiss on the lips. P was quite stern with him and said "Thanks for that kiss DS but you must NEVER kiss on the lips". I was taken aback as DS always kisses on the lips, or cheek, or wherever and I've never thought anything of it. I said in a jokey way "don't listen to him DS, you can kiss on the lips!" and P sort of tight-smiled at me.
The next day their DS gave his first ever kiss, apparently he has never done this before. He kissed me on the cheek and then his mum on the lips. P and his wife then had a little conversation about this kiss and she said in a worried way "he kissed me on the lips, I couldn't help it, he wanted to" and P said "I know, we'll have to be really careful not to let him get into that habit".
Am I missing something? They both work with children and essentially I don't know anything about children except my own. Is this not cool to let your own child kiss you on the lips, and maybe other people? Should I be stopping it? They are quite an anxious nervy couple anyway which I did initially put it down to but been thinking I'm not sure I see many three year olds kissing on lips. What to do?