[gnicholas]

Do you mean 16? I don't think there are any states where you have to wait until 18 to get a license.

[octobus2021]

It is state dependent, yes, but in all the states I looked at 16 you get restricted driver's license. You can drive without an adult but you cannot have more than one passenger, cannot drive at night, cannot use your phone, etc etc. In many states this still requires road test.

The "adult" driver's license can be acquired at 18.