Great photo and a great chance to have some time with them.
It's a scary thing when they do graduate. I have let my 6 and 7 year olds use my other two cameras when we go for walks. They have graduated to my old XTi and the M. I much preferred when they were using a camera that was basically throw away. I find they enjoy the trip much more, but I am cringe every time they try to walk and photograph at the same time.