We are often on the road, because our family is distributed throughout Germany and as you drive too sometimes something. Our 3 1/2 year old daughter would be now on driving. However, we use it only on long-haul!
Even my husband (independently on mounting) said it might be an idea for the operation car, if you do not have to go alone!
I highly recommend it and if you do not want me, you just turn it off and is good. A monitor alone fits in our glove compartment!