If she had a bad experience clothing teddy bears, sipping cocoa, and talking about boys, that's not the fault of these types of events. That's the fault of the event organizer. You don't swear to never receive cash from someone again because you once got burned by receiving counterfeit money.
When I was in high school, I was part of the science club. Ironically (I guess because I'm a guy?), one of the events I helped to organize every year was the Ms. Infinity Conference, a conference where young girls were invited to learn about opportunities in science, hear from women in science, learn about what was interesting about science, etc. I can assure you there was an agenda that kept the attendees focused on the subject at hand. It was respectful and hopefully helpful and inspirational.