Enjoying a Six year old

Since I'm in story sharing mode, here's a recent Lily story. A 9 year old neighbour asked to borrow her scooter, and took it to play on the quad. A bit later, Lily came running to me saying this girl's 5 year old sister really wanted to ride the scooter and I needed to come out "because it says children under 7 can only ride if an adult is supervising". Intrigued, I checked the scooter and found a very small label saying that young children should only ride with supervision. You've gotta follow the rules with Lily around...