Mathematically speaking, the first objection is a solid one. The second objection I don't really subscribe to, though I am somewhat sympathetic to it in theory.
What trumps these, however, is all-too-simple for me:
My great-grandfather was born a slave. My grandfather was born in Meridian, Mississippi in 1883. My father in Fort Wayne, Indiana in 1928. None of these men were born with the expectation of voting rights at any point in their lives. I am of the first familial generation that was granted that right by people who never lived to exercise it.
So, while my friends have their rights to deny themselves a right
Call me sentimental.