Everyone does dumb stuff when there 12.But they probably still know it was wrong off them to do this. I say give them a temp ban and a warning. and tell them that next time there age or ¨lack of experience¨ wont cut it. ofc im not an Admin so i got no say on that matter D:.

Edit: Try this place next time you wanna post a report :3
link; http://piratemc.com/topic/cheatersglitchersdupers/