My 5year old wants to play but the menu and log in system is making it impossible for her to get started

User Rating: 6.5 | Fruit Ninja Kinect X360
As a parent I dont get why simple games like this which would be fun by kids are making it so hard to get started playing. There should be a quick play option where no log in is neccesary. If I navigate through the menu and start a game and then let my daughter play the game stops and she needs to log in. The game is about slicing fruit and I simply dont get why this identification is so important. We spend more logging in than playing - which by thye way is the problem for several childrens kinect games. Also the menus are set up in a way that every movement of her hands risks choosing some unwanted option.
When we finally get a game started the slicing is good fun. But it it is bad design that the navigation and logging takes so much time.
The menus are harder to master than the game itself - at least for a kid.