I don't get it.. why I can't give my license to somebody, for example, to my friend, if we both are unable to drive in S2 in same time?
It's the same, like: In real life I buy a car, and I dont use it. I give it to my friend with all certificate's of registration, and other things, and he can drive with my car.
Or: I buy movie on a DVD, I watch it and then I give it to my friend, because he want's to watch it too. We both can't watch DVD in one time.