I agree with most posters here that the punishment fit the crime. The thing that really gets me about these young boys is that activities like this hurt bicycle advocacy and trails access more than they know. These kinds of infractions make it to the forefront of the media and then the people who would like to block access to national parks, etc. that might be good places for bikes get a lot of negative ammunition and hurt the fight for access for bicycles to parks (not saying that bikes should have access to the grand canyon).