After playing in a number of on-line worlds and MMORPGs, I finally found an MMORPG which I can share with my pushing-12 daughter -- Mabinogi. It's an amusing Korean interpretation of a Fantasy/Magical Celtic/Welsh world (with some very traditional Korean clothing juxtaposed) in an anime style.
What I like about the game is that there's no non-consensual PvP (I'm not sure there is any PvP, but I haven't been to the Arena so maybe there is some PvP), they've got a swear filter, a minimum of gold-farmers and you can play a completely free version that allows you to dungeon crawl, perform short quests and grind with the paying accounts pretty-much equally. If you choose to pay for support you get some advantages, such as ability to customize things to a greater extent, form a guild, more equipment storage, a bit of Adam Smith's "unseen hand" and some whatnots that can mean the difference between life and death plus you can also do a very long (29-sub-parts) quest in Generation 1 and there's a Generation 2 quest being implemented now.
You can also buy upgraded character models and pets (even on the free account) to further individualize yourself. So far, the Monkey's gotten herself a cat and is screaming about its "cuteness" and "awesomeness" while I have yet to even activate my game-card. She can also, if she wants, play as the cat. Which, of course, she does and I hear her screaming about the cat being like some "super ninja."
While we do play together quite a bit, we're not entirely compatible as players. I play the way I always do - low-risk sniping (magic in this game). My daughter, OTOH, has shown she's really got the blood-lust and routinely charges into the fray with her sword in hand. She's also very social and made four-friends in the first four-hours and joined a guild. Me... Well, I'm pretty much soloing everything.
It's going to be an interesting summer.