I do really recomend Animal crossing though it is a great game, but if you and Adele play it make sure you set up seperate villages then it doesnt matter who you playu with online as it wont affect her town. Cause even when your not playing it, characters from villages you have connected with will spawn in your town complete with swear words lol!
If your interested I am prob going to be selling my games in the near future, cause I will be selling my DS.
5 is not too young at all. They have little kid games and remember you can play Nintendo advanced games on it and it doesn't require you to use the little pen. Allison is 3 years old and she plays a my little pony game.