all I can do now, is be aware of my own thoughts when socialising and ensure that I do not inflict the same kind of immaturity on my own kids.
I've told my family members that we are not going to make a big deal out of it when my kids are going through the same thing.
It came up recently because my son's current best friend is a girl and they are really cute and cuddly together. I'm not going to mention it at all.