What a strange post. So you're saying that people wanting to attend a park are unable to control themselves? Whether it be the people getting to Universal or Disney at 4am, they've made a conscious choice and an informed decision. They know there's going to be a huge crowd and so have decided that by getting there early, they'll probably queue less time in total.
By saying "Adults should be able to control themselves", I can only assume that you're implying they should wait till the land isn't as busy before visiting?
The problem with your 'logic' is that it really can't be 'policed'. If everyone waited to visit to when it wasn't busy, there'd be nobody there on opening week at all. Many myself included, had their trip booked before the land was even announced as opening. Feel free to offer up the precise dates that it's not insane to queue up for Uni or Disney though, I'm sure they'll be those on here grateful to your insight into when they should reschedule or plan their trip.
With the park opening at 6am I really don't see people queuing 2 hours earlier at 4am that insane, but I realise that we all have our own way of looking at things and you're more than entitled to post yours.