I've been having issues with my son leaving without permission since he was around 15. It depends on the situation bc my son left at 16 and comes and goes as he pleases. Some cops used to bring him back while others said let him where he's at if he's safe. Now he's 17, and the system does not allow me to have control over when he's home or not home. They say I'm causing trouble if I keep calling the cops on him when he's not doing anything wrong. They tell me that he's not hurting anyone and he's with a friend. Recently he didn't like that I said he couldn't go with a friend that he's gotten into trouble with before so he did what he wanted and left. I called the cops and he called CYS and they told him he can stay where he wants. The cops told him to come home while CYS said he didn't have to. He's been home maybe twice in the past two months.The law doesn't always make the child go home. I know a young lady that's leaving her mother to live with her friend in about a year and she'll only be 17. I guess each case is different. I'm wondering myself what the legal age is to leave home so I know.