there's such a thing in real life, although it's girls that they "sell"
There’s a street in Tokyo known as "JK alley" or "Jk cafe" from the Japanese Joshi Kosei, meaning high school girl.
Girls pose as underage dressed in school uniform sell their time to passers-by.Men pay to hold hands, have a cup of coffee with the girls. Some even pay to sleep on a girl's lap. They can even go on dates away from the cafe and what happens between them are up to the girls and the clients.
You can also find yaoi cafes where you can order food while watching them have skinships
I honestly understand Dan, one of my gay friend also have sex with no emotional attachments (we're always talking about our daily lives) saying that's how he feel like himself and also because he has been broken hearted many times before and he can fulfill his desires by doing that. I think Dan portrays a lot of people in real life.
He has no motivation or whatsoever until Logan came and brought him excitement and now I think he's desperate enough to even follow Logan .
"a tree will bear a fruit of its kind"
ANd the apple doesn't fall too far from it tree