[CMAC51]

Licensing is partly to assure responsibility and partly to control the masses. Lacking a license does not deprive you of the right to travel, as you can walk, bike or take a bus or train; and I can find no constitutional right to travel conveniently!

Actually licensing does not restrict your right to drive. It restricts where you may drive. You do not need license to drive on private property. You need a license to drive on government owned roads. The government is basically regulating the use of government resources. It is hard to see a constitutional issue in that.

[ctdonath2]

Would you consent to a license to buy food? You can always grow your own.
Would you consent to a license to buy guns? You can always make your own.
Would you consent to a license to speech? You can always talk at home.

[MamaTexan]

You need a license to drive on government owned roads.

The government doesn't 'own' the roads, the public does.

Not to mention the legal definition of license IS governmental permission.