Those entities 100% deserve the same level of scrutiny.

The issue is price of admission. Sounds crazy right? Kennywood costs like $50 for a ride all day right. I don't have specific dates to cite but there was a point that the general admission price was limited to purchase until a certain time of day. After that you have to pay full price to come in after say 5 pm. This was around the time where the metal detectors and bag searches were employed if I recall correctly. Fast forward 12-15 years and introduce the $99.99 season pass. People just coming in to hang out and cause trouble is once again an issue.

I'm not a historian by any means but there is a good amount of adlib truth here. This type of price structure doesn't apply to a concert venue. The zoo isn't a place where 15-25 y/o's are going to just hang out. Plus the zoo closes pretty early.