I don't know anyone who married someone who they met in high school, let alone grade school.
Maybe that's a regional thing? My parents met in junior high. I know lots of people who met in high school and married (with varying degrees of success, but that's true of people who met later in life).
I personally am not a fan of grade-school "going steady," or permanent body modifications (including ear piercing and other mainstream body-mods) to the bodies of people who aren't competent to give truly informed consent, or Bratz. But having grown up as the kid who was expected to conform to my parents' (extremely non-mainstream) norms, rather than my peer's norms, for my own kid, I permit a great deal in the name of peer conformity.
That said, I was slightly appalled when my SIL took DD7 birthday shopping, and in addition to getting her nail polish (which I have no issue with), also asked if she was allowed to wear makeup "out of the house," because if she was, SIL would have gotten her some eye makeup.
