Hahaha so many people whining about the 'censorship' in this thread were going apeshit about that one shitty Kotaku article. None of you are fooling anyone. I can't believe this thread this so fucking long either.
It's localization, and honestly good localization at that. The 'gravure' elements of the idol industry tend to be exploitative, and the game has absolutely 0 critique of the idol industry as a whole, or the gravure stuff in particular, so it makes sense they would remove that for a western audience...because people would recognize it as exploitative here.
They also made the characters 18 instead of 17 because even without the gravure elements, a lot of the stuff they are doing in the game seems exploitative unless the characters are adults. Bravely Default also did that, as have many other JRPGs...which is a good thing. Saying "in the western version they are 18 so why not have the swimsuit shit back in"...like idk, maybe we should reflect on how our society thinks it's fine to exploit 18 year olds because they're not 17 anymore? Idk, just a thought.
As for people comparing this game to YA works that feature sexual themes like Inio Asano or something...its not comparable. Obviously fiction should be able to show teenage sexuality in a tasteful or meaningful way because that's part of life...but that's not what this game was doing. It was titillation for titillation's sake, and that's kind of skeevy and not something Nintendo wants to do for the western market.