doesn't look any more dangerous than driving down the interstate with a bunch of guys in the back of a pickup (or around town/teens in back, etc)
I am sure if/when there was a section there was any danger everyone would be secured or better yet, let em get out and watch dad flop it...
I will say I am 50/50 on this one...is there a huge need to be "that" secure for 99% of the trails at URE, especially if you are taking the ez ways/bypasses, etc. Just a nice day of wheeling with "zero" chance of flopping?