COUNTER POINT! I don't think more people are invested in Ian. Cindy, Ivy, Holly, Lena, Allison even Minerva seem to have more fans in this thread, and the fanart thread than Ian. You can be invested in Ian, but trying to justify your own interest in his side of the story by saying thats how it is most of the time doesn't wash. This isn't a harem game like 99.99% of the harem games available, and praise be!
Roleplayers play their gender in all games, others play whatever they want and aren't fantasizing they are the main character. Each can do as they prefer, and you don't have to justify how you play by stating dubious statistics that support your view. There are a lot of male players in MMOs and RPGs that won't admit they play female characters, like it threatens their masculinity, they are just games, play how you like. Most people here in this thread like this game, differing opinions on why, so it's all good.