Just thinking out loud here...
Is it possible to have a 3rd gate where plenty of theme attractions are geared toward PG-13, perhaps some attractions even 'R' rated? Are there any E-ticket level rides like this in any theme park in the United States? I don't think so. "Marvel theme", water parks, adventurelands -- I don't know, it all seems so banal, so ordinary. I'd like something cutting edge, something "dangerous" without being dangerous. Also, there would need to be some diversity. It can't be a "haunted park" only.
1) dark ride with a theme like 1982's "The Thing", or "Alien"?
2) a terrifying insane asylum ride? In this "E-ticket ride", you go through various levels of this hospital Hell.
3) an R rated "surviving the wilderness" ride -- jungles, arctic, aggressive animals, whatever.
4)some other "cutting edge" theme rides? -- they don't have to be aliens or monsters, or horror, but "mature".
-uniqueness. No theme parks have this so the word of mouth and excitement nationwide would be enormous.
-Age restrictions. How would they work?
-Not quite "fun for the whole family".
More advantages/disadvantages? How could this work? Is this possible? Your thoughts?