Witches VS Patriarchy

Besides what the other person said, it's much deeper than "boobs = sexy." It's a culture that blames young girls for boys and grown men finding them sexually attractive. Even in your "oddballs" example, we don't ban people from going barefoot because some people are into feet (probably the most common fetish in the world thanks to biology). If people have a problem with that, it's their problem, not the person that they're objectifying.

I agree that it's not a quick fix, but it starts with teaching boys to have some simple self control and basic empathy and not making the girls shoulder all the responsibility of boys being horny. But that also starts long before you ever get to a summer camp, and that's also an important part of the topic. Like I said, it's a deeply rooted cultural issue.