Perhaps it's because the dowry of grandmothers in this world includes a hereditary hot spring that can't be taken away,And according to the type of police work, there are also a variety of allowances that can be received, such as patrol allowances for patrol officers and traffic management allowances for traffic police.,Besides, I wonder if you've seen Monogatari Series, where Araragi Kun became a deputy police superintendent at 23 after graduating from university. His sister joined the police force as a patrol officer while still in high school.。