The specific laws regarding learners permits and passengers vary depending on the state or country in which you reside. In general, however, most states in the US allow a minor with a learners permit to drive as long as a licensed driver over the age of 21 is present in the vehicle. Some states may have additional restrictions, such as limiting the number of passengers that can be in the vehicle.
In terms of minors being in the backseat, it again depends on the specific laws of your state or country. Some states may allow minors to be in the backseat as long as a licensed driver over 21 is present, while others may restrict the number of passengers altogether. It's important to check with your local Department of Motor Vehicles or equivalent agency to understand the specific laws and regulations in your area.