It dosen't have to be a sexual bloodfest to be deemed "mature." Take most movies, you guys adore them for maturity and it's about as inapropriate as a Barney episode.

Technically, all blood does is shock you with its gore. It can't move you psychologically, so it moves you by throwing blood in there. What's so mature about that?

Sex? Sex, meh, I don't think its necessary, but that wouldn't stop from playing.

Drugs? Same as above.

Thing is, maturity isn't the content, but the actual game. Blood dosen't create horror, sex dosen't create romance, and drugs dosen't create drama, HORROR creates horror, ROMANCE creates romance, DRAMA creates drama, and MATURITY creates maturity, so if Final Fantasy turns into a sex-infested bloodshow, which I hope dosen't happen, it would ruin the already mature setting, content will just make it well, sick.