You said it yourself. It's not that easy, and I certainly wouldn't disagree. Homeless shelters, soup kitchens, and missions are extremely busy places, seeing hundreds of people. The idea that you can just waltz in and get an attestation letter, as I said earlier, is quite ridiculous.
What worries me in this, and it goes back to Mr. Reid's hypothetical. Even if the woman I described could not have someone vouch for her, I would like to know what Mr. Reid thinks the solution is then. She's not going to end up with ID. She doesn't have ID as a result of this, and if the bill goes through, she doesn't have anyone to vouch for her. So, then what? She just doesn't get to vote. That is the logical conclusion to Mr. Reid's questioning.
I think you raise very important points. What I like to say in my experience of working with poor people and people who are homeless is that people's lives are messy, and a tidy little list doesn't always work for people whose lives are messy.