For families that are traveling with children, always keep them in your sight. Given them a whistle that should only be used only during an emergency.
Since you will probably be cooking some of the food for your camping trip, be careful if you are using a small stove. As you know, this is powered by a gas canister and this could explode under extreme heat. To avoid that, keep this in an upright position and in a ventilated area. Check for leaks before you buy it and turn it off when not in use.
If the gas canister is exhausted and it has to be replaced with another one, make sure removing and installing is done far away from flames and other ignition sources.
Although we have no control over the weather, we can push through with the camping trip only under fair weather conditions. To do that, check the forecast for the time that you will be out there and listen to the radio in case there are any changes.
Most campers bring a lot of food for the duration of their stay. To prevent this from spoiling, be sure to keep these cool at all times by buying blocks of ice and putting these together with your food inside the cooler.
When you start the fire to cook your food, be sure there is always someone around to guard it because if left unattended, you could start a forest fire.
Camping in France can be fun if you are able to bring the proper gear and practice safety at all times. Wherever you decide to do it, check with the authorities the rules and guidelines.