Still a good idea to know first aid principles for when you are out of contact with emergency services. Red Cross sponsors some good classes and RVers should attend one of these when possible, the life you save, or the aid and comfort that you can give are worth every minute. There are many places where 911 calls can't be made due to remoteness of location. A well stocked first aid kit is something to pack along too. You may be the first person to encounter an accident scene or personal injury to a fellow camper.