Final answer:
16- or 17-year-old drivers with a permit can typically only have a licensed adult who is at least 21 years old in the car with them.
Step-by-step explanation:
In most states, 16- or 17-year-old drivers with a permit can only have a licensed adult who is at least 21 years old in the car with them. This is typically a parent, guardian, or licensed instructor. Some states may have additional restrictions, such as allowing only immediate family members or prohibiting any passengers at night.