VEX U

What are your thoughts about VEX Unlimited adult involvement? Right now VRC is student-centered, where adults may not touch the robot without students being present and actively participating. But I have friends in other competitions that when their students fall behind schedule, the adults jump in and solder and weld late into the night after the students have all gone home. So when you say Unlimited, do you mean for the adults as well? And if it is unlimited but student-centered, how do you handle someone saying it is too complicated for a HS student without watching an adult do it for them? Is that really student-centered? How unlimited is unlimited?