How old do you have to be to get your cartilage pierced in Michigan?

you must be 18 to sign for yourself of course, but if you want it done earlier than that all you have to do is go to the mall, and have your parents be there, or a gaurdian or what ever. :) that is basically it. you must be 18 to sign for yourself of course, but if you want it done earlier than that all you have to do is go to the mall, and have your parents be there, or a gaurdian or what ever. :) that is basically it.