I don't agree with this proposal - I visited Haunt unsupervised for years with friends before I turned 18 and I'm sure countless others did too. I don't think it's fair to punish the well-behaved lot of teens by making them choose between going with Mommy and Daddy or staying home, because of the actions of a few troublemakers. More importantly, it seems like bad business to bar a substantial amount of your target demographic from your event for the same reason.
I think the better solution is to raise ticket prices and do away with the flood of low-price ticket deals the park always puts out during Haunt. Higher ticket prices automatically reduce crowd size and would accomplish the same goal of keeping some teens away but without setting a hard anti-teenager rule. Better yet, it allows the park to still make money even with reduced crowds.
That said, I'm still trying to figure out the issue KD's PR department has at hand: how do you fight the bad press about Haunt's safety right now? It seems like a catch-22. If they stay quiet, the social media outcry will continue to fester and grow. If they speak up and talk about the safety measures they've taken at Haunt this year, that legitimizes the problem and airs it out even more. What would you do if you were in the PR department's shoes?