Yes, it's worth getting a front and rear dash cam. It can help prevent accidents from happening in the first place. The presence of any dash cam – front or rear – may also help discourage bad behavior from other drivers who don't want to be caught on video. There are some disadvantages to having a dashboard camera attached to your vehicle. First, you may not be able to see all of your driving at any given time, which can lead to confusion and potentially a crash. Also, if you're driving with a friend or family member, the dashboard camera will likely pick up sounds that they would find distracting, making it more difficult for them to drive safely in the car together.