Most, if not all, here are objecting NOT to any speed of rollout. They're objecting to the requirement to provide voter ID on the grounds of disenfranchisement of the poor which isn't a sound argument at all.
For those who need it, ID cards will be provided free. If the people in the poorest part of the UK (Northern Ireland) can take to ID before voting, there is absolutely no reason why those in the richer parts of the UK in comparison cannot do so.
It is the Cabinet Office who will have access to numbers of people with access to various forms of ID. Nothing wrong with them as a source, really. Fact is, the vast majority of people already meet the requirements. Some don't and are eligible for free ID cards. Less than 2 million people don't meet ID requirements. Vast majority do.
If anyone can't be arsed applying, they will be self-excluding themselves from voting. Not the other way round.
About time the requirement for ID to vote was extended to GB. After all, it wouldn't be the first thing that started in Northern Ireland and was extended to GB - devolution is another. But that's another story.
About time the UK joined the long list of countries who require voter ID.