Legal Question in Constitutional Law in Maryland

The constitutional right to travel means you're free to go from one place to another, but not that you're free to operate potentially dangerous vehicles without a license. You can be a passenger in someone else's vehicle, or you can walk, ride a bicycle, etc. But you have no more right to drive a car than to pilot an airplane. The government can reasonably require you to prove that you know how to operate those vehicles safely before it lets you do so on public roads or in public airspace.