Jurassic Park should have a massive re-do of Ptereadon Flyers so it can be a family coaster that EVERYONE can ride but no too intimidating (No loops, mild drops), and then a safari like the Jungle Cruise with animatronics.
I think the problem with opening Pterenodon Fliers to non-children or people without children is that the attraction could never handle the increased demand that would bring. As a kids-and-parents only attraction that's still a little scary, it tends to be self-regulating despite the pitiful capacity.