My experience is that by 13 years old a person has enough cognitive ability to understand and negotiate any rule. They lack the experience to negotiate every ru

My experience is that by 13 years old a person has enough cognitive ability to understand and negotiate any rule. They lack the experience to negotiate every rule, but any individual thing they pick, from sex to drugs to skipping school, can be understood deep enough for them to set their own terms safely if they aren't happy with the default.