The age of majority in Georgia is 18. You could be held liable for the actions of your son in some cases. Being close to the age, it's possible that he will be held as an adult, however it's not definite. If you don't want your son to move out, you may want to contact Family and Children's Services and see if he can be reported as a runaway. If it's okay with you that he goes,and you just want to cover yourselves from any legal problems he may get into, ask an attorney what your best course is.