Yes, I agree with the premise to that question.
I started off by saying that people who vote at advance polls were determined to vote, and part of this determination involves finding out where the few advance polls really are. I mean, it's not entirely obvious where they would be. Having them open at all locations at one particular time would I think encourage their use. I think it would also encourage their use by younger people, as well as by the older people who now are more likely to seek out advance polls.