I see some of those signs around the neighborhoods where I ride bicycle. I understand the intent and fully respect it. Unfortunately, the same household will pile all the kids in the car and mom will tear off down the road with cell phone firmly glued to her ear so pedestrians and cyclists beware! The message that sends to me is everyone else needs to watch out for us, but you on the other hand..... As far as using them in a CG goes - the safety factor at a CG is more dependent upon safe rules and good enforcement. The state park closest to us has a reputation for enforcing the rules. You drive too fast inside the park (and it has several miles of roads) - you will get a ticket. You have more than 2 vehicles at your campsite - you will be told to park the extras at the overflow lot. And that's why we enjoy camping there and feel very safe cycling there. I've been to parks that let people park as many vehicles as they can jam on their campsite. It looks like a major party zone with cars parked bumper to bumper. Now when kids start darting out from behind those cars, no sign in the world will help. Only very cautious drivers. So if you want to put your sign out - fine, but there are other far more productive things you can do to keep your children safe. 1. Obey the rules of the park (and encourage your friends to do the same) 2. Teach your children how play safely in the park, including riding their bikes/scooters/etc. 3. Don't let them dart in and out of campsites (and respect other's sites!) 4. Keep your cell phone out of your own ear while driving and don't even think about texting. 5. Find out what the park options are for children's activities and get your kids to participate. Those group activities are usually great fun and even educational at the state parks. It beats your bored offspring running through other campsites and darting across the road.