So with Yaguchi, we now have five people who find Yoshida weird for not leveraging the shelter he's offering to ask sexual favours of a minor in a vulnerable position. In how Yaguchi has been presented and received by other characters, such as Asami, it's clear he's supposed to be seen as having twisted values. Sayu's values have also been called out in an internal monologue by Yoshida. What's the excuse for Mishima, Gotou and Asami?
Why oh why is the default assumption/common sense for everyone except Yoshida that exchanging shelter for sex with a vulnerable person is more normal than expecting nothing in return? The fact that every time other people mention the "You're the weird one" line, Yoshida's first reaction is to doubt himself really hits home how the lesson he is to learn is that "If you're going to extend a helping hand, you should expect something in return, otherwise you're weird". Or more specifically: "If you're going to provide shelter to a vulnerable person, you should leverage that to have sex with them, or you're weird."
Is this the lesson this story wants to tell us? Why? Why would you want to teach such an awful lesson to people? I just don't understand what's going on in the author's head.