DAE think it’s weird for parents to kiss their kids on the lips?

I recently watched a child kiss her dad on the lips in public (this little girl had to be 8-10) and I found that it made me feel weird. I started researching it a little bit more (because I have no memories of ever kissing my parents on the lips), and I found that it’s actually a pretty heavily debated topic, and I also found that some grown adults still kiss their parents on the lips. I think this is weird. I understand kissing your baby or toddler on the lips, but I honestly think it’s weird to do it anytime past school-aged.

opinions?

editing to add: I made this post because it seems like a lot of the other stuff I’ve found online weren’t willing to discuss the nuances of this. it was either yes, it’s weird or no, it’s not weird, but nobody was really saying that it’s not weird up to a certain age, and then it starts being weird.