I do believe that every kid should be aloud to try out a FRC Team, but they should be able to kick you off because of bad behavior. On our team we have a kid who constantly vandalizes our tools, robot, game pieces, desks, chairs, and walls with sharpie, paint, spray paint, superglue, and hot glue. But because we have a no cut policy hew has to stay. I don't think you have any idea how much of a pain it is to take off hot glue from your electronics board.
Also his behavior antagonizes the other younger members to goof off too.
With the time commitment we are aloud to have one other competing interest such as a sport during the 6 weeks. We are also required to go twice during the week and every Saturday for those 6 weeks-its really not that long.