| When you are given a drivers license, you must pass a course insuring you have the ability to control your vehicle in accordance with state/national laws. When you drink in excess amounts it impairs your ability to carry out normal functions, of which would be required to operate a vehicle in accordance with those laws. This is a case where being chemically impaired would openly void your abilities to drive because at the time of intoxication you wouldn't be able to pass to get the license, therefore you shouldn't be able to drive.
If you are going to say that you, or a person in your example is not impaired enough to void his license by being chemically impaired to that extent, then you wouldn't need to worry about a law that doesn't apply to you.
And in a debate, it is typical that some assumptions would be understood so's that you wouldn't have to be redundant in your claims, i.e. driving outside of normal ability, that which you were prescribed a license with is wrong. |