Why are Japanese names related to place names and place names?

Someone is belligerent. In ancient times, almost all young men were recruited to fight as soldiers, and there was no time to get married and have children, so there were fewer and fewer people. At that time, a country formulated a national policy that all men could have sex with any woman at any time and any place to maintain the birth rate. Therefore, during the truce, women in a certain country became accustomed to the "whenever and wherever" approach. They simply went out with pillows and sheets on their backs, and later they became so-called "kimonos". Many women went to war after being "whenever and wherever", so their children appeared in Inoue, Tanaka, Matsushita, Watanabe, Yamaguchi, Noboru takeshita and Kondo.