First of all, there may be more girls than boys in school. This arrangement in the school is obviously that girls are treated better than boys, or it may be that the number of girls in the school is much higher than that of boys. Because the number of boys is small, there is no need to spend extra money to build a luxury bathroom, because there are not many people, just a place to bathe.
Second, girls spend more time in the shower than boys. As we all know, girls like to dress themselves up and take care of themselves after taking a shower. They may spend more time in the bathhouse than eating. Boys are different. As long as they can take a bath, they will lead an honest and clean life, and they will not dress up in the bathhouse. The conditions are not too good.
Third, girls are more willing to spend money to dress themselves up. It is also profitable for the school to build this bathhouse. You can pick your ears and sweat on the second floor. Generally speaking, girls are more willing to spend money on these things. Boys' money is generally spent on playing games, and they don't want to waste it on enjoyment. Schools always have their own reasons to do this, and netizens don't have to over-interpret it. Boys are not without bathhouses.