I see. That make sense, and to be honest even in Japan no one will worry about such short distance of age, but if the adult is let say 25 or something and date 16 years old, I am sure this will be problem, but if the minor is 17 I don't know if here they will worry. Maybe possible some USA states will prosecute, but I know, even though AOC is 16, this is a dodgy area. Even here it is largely prefecture rules than federal matter. Prefecture means state. Not totally different to USA, except USA has more age variants like 16, 17, 18. Especially harder for older guys/girls with these ages. I like people my own age, or I should say just one so far.