I can probably speak to part of that.
For a large number of people with visual disabilities, who have a problem or are visually impaired, it seems to be a fundamental right that the person should not have to rely on someone else and should be able to independently verify which name they're voting for. It's a question of dignity, so in our view it's the ability to personally do it yourself, not having to rely on kindness, or whatever. Not everybody has someone they trust to bring in with them. You don't want to turn to the person next in line and ask, “Can you come in and give me a hand with this?” And you don't really want to rely on a voting official. It comes down to the fundamental democratic rights of the electoral process.