Kissing a Child on the Lips

I could be alone on this...but I really don’t like when an adult kisses a child on the lips. Even if it’s their own.

If you do decide to do it, at what age do you stop? Also, if you do stop at a certain age is it because you knew it wasn’t right in the first place?

I’m trying to understand everyone’s point of view without judging. I personally won’t do it or would allow anyone to kiss my child on the lips. Should I stop my husband if he does?

Please share your thoughts.