You don’t either
I can confidently say I don't. I just wanted to be ass. Thanks for coming to my Ted talk.
I don't know what's the point of this? Do you find misinformation funny? The whole '13 is the age of consent in Japan' is false if that's what you were implying. 13 year olds can have sex, but not with adults. The actual law states that anyone that person that has sex with a child not of marriageable age (i.e. 16-18 year olds with parental permission) is illegal. But enjoy being an ass i guess.
No, the age of consent such be 18,19, and so on. Then I thought about how it was ok to marry 12 year old when your 20 or so, back in the day. That's were the stem of my incredible stupid idea came from.
Besides how good the story was to me, people aren't understanding the difference between the age of consent in different countries.