How much freedom to roam do you give your kids?
When I was young and camping with my parents I had two older brothers who looked after me, which enabled me to go and play around the campsite. By the time they were grown up and no longer coming with us I was about 10 and so my parents would let me wander around the campsite, make friends and play as long as I checked in with them every so often (which at the time I thought was a total inconvenience).
Now I am the parent, but a parent to a 6-year-old, who thinks she is much older, at times acts very mature, is generally very sensible, but looks so small riding around on her little bike.