>>2461819Lol, that is not a crime rate map. That is a map of what age a child can get married and have sex LEGALLY. Thousands get married every year. Nearly 300,000 children—a few as young as 10—were married in the U.S. between 2000 and 2018.
But since you mentioned under reporting crimes do you think that only happens in Japan? A good way to have a good grasp on how much crime is actually happening around you is to check vending machines.
1. Vending machines sell products without requiring a hired human to stay there in theory.
2. Vending machines allow to sell for a slightly higher price than convenience stores or supermarkets exactly because they are faster and more convenient.
3. Vending machines are vulnerable to vandalism and theft.
So in a place where crime is very rare you can place vending machines anywhere where there are enough people and get a profit without many expenses besides maintenance and electricity, much cheaper than running a store. You can see vending machines in the middle of a road or an alley working 24h/day.
If there are a bit more crime, you can only find them in places security cameras or some hired worker nearby (security, store cashier, etc), places with constant human activity so nobody can try to steal from it unnoticed.
With even higher crime rates you can only find them inside places with controlled entrance/exit or strong security.
If the machines are at risk of being vandalized, stolen or even people taking the entire thing they no longer are advantageous to selling on a store. This is why Japan can have them anywhere. The chance of being robbed really is very small.
You can also see how more lost itens are sent to the police than owners bothering to to look for them or how some years ago some unknown person was leaving 10 000¥ bills in many public toilets with a note telling them to dedicate themselves to good deeds and not holding evil thoughts and people were returning the money to the police lost and found.