Re:passphrase (Score 1)

I think that probably the best choice is to use pass phrases, but related to things she wont forget, I mean, don't start picking phrases and then try to realize whether she's going to remember it or not, by the contrary I'd first try to figure it out what kind of streams she wouldn't forget, like little girls songs chunks or so... I think that by that age she has already a couple of songs of her preference, so, choice the part she likes the most from one of her favorites, or if you don't like the idea of she being singing her password all around, use hers school name, or perhaps her's pet or best friends name...