Cory, just so you know having an 18 year old on a ride helps out the ride a lot. Not only because of the breaks thing(meaning, Sups don't have to worry about putting you on a break at a certain time whereas they have to worry about minors or they will minor violate, aka. Go 5 hours without a break which is no good). You can be trained to operate the ride, thats an everybody thing(not just supervisors), provided you do a good job and the sups trust you. And if you are 18, signed off to run the ride, and trustworthy, you could possibly be left in charge so your sup doesn't have to be on the ride at all times(like if they need a break or something.)Just so you know!