This has a really low rating but honest I really like the story so far. People are too quick to give something depressing or controversial a low rating when this story could prove interesting.
To address a few common points:
- I can understand a 14 year old not fully understanding prostitution, especially if his mother has been going out of her way to hide such topics considering her...profession. Plus he's shown not to have any friends or relationships with people, because they don't want to associate with him because he's poor. Middle School doesn't exactly tend to cover sex is very much detail in general and they definitely wouldn't cover prostitution. I think this perception of him as just a "stupid mc" ignores how he's clearly been neglected, abused, and bullied, which correlates to low intelligence, in pairing with a poor socio-economic background and asocial behavior, which probably would result in child-like naivety.
-The mother being a prostitute is depressing, but it's firmly established that they're dirt poor. The cost of living and what she earns is not enough to sustain her family indefinitely, and the money she can earn from having sex is not something she can do every night or day and so has to be spread out. This gives the appearance that she's acting in desperation and MC is willful ignorant or intentionally pulling a blind eye to his mother's behavior. Even if she was intentionally keeping the money from him, it only serves as interesting characterization and shouldn't detract from the quality of the story.
This definitely deserves a higher rating. It's well-written and interesting for what it is so far.