According to ESRB, this game contains: Animated Violence, Mild Language
Parents who were disappointed with the potty-mouthed dialogue and sexual references in Final Fantasy VII and VIII have less to fear with this title. Although the language is still somewhat rough, it's nowhere near as bad as Final Fantasy VII, and the sexual innuendo has been replaced with a more old-fashioned love story.
Fans of the Final Fantasy series should enjoy this game, regardless of at what point they entered the series. FFIX does a decent job of bridging the supposed gap between the old-school pre-FFVII and the newer games, and as such should appeal to anyone who loves the Final Fantasy formula.
Fans of role-playing games may find Final Fantasy IX underwhelming, however. Despite the pretty package, it is quite formulaic and linear. I think female gamers have resigned themselves to there being at least one or two vulnerable healer/magic-user characters in all Final Fantasy games, and this one is no exception. Garnet and Eiko fit this stereotype perfectly, yet the presence of two older, more seasoned and frankly more kick-ass women (namely, Freya the dragoon knight and Beatrix the military commander and swordswoman) help to offset the gender-bias.
Deaf and Hard of Hearing gamers will have no trouble playing Final Fantasy IX, since all dialogue is presented in text boxes.