Advice please. At what age do youngsters become adults in the eyes of the Caravan Club i.e. If I wanted to site my van on a club site and let my daughter and a friend stay for four days would that be acceptable as they are both 18? The reason I ask is that if I wanted to park my van on a Haven site (which I don't really) there would have to be a 25 year old with them in the van in case they caused trouble on the park. Obviously there's no way I'd leave them in charge of my van if I thought for a minute they would cause trouble or cause offence to other caravanners. They are both responsible intelligent girls who just want a few days away after A levels and before uni.