I have a 12 year old step son and he wants to move from Cali to AZ with his father. The divorce was done in AZ and the mom took the kids to Cali. How old does a child in Arizona have to be to choose who the child wants to live with?

Thanks!

No less than 18. At no time can a minor child make a decision as to where they will live. They can express their opinion and a judge will listen, but they can't make the decision. To even get it to court, the parent the child wants to live with must file a petiton in their local court for a change of custody.