Registering to vote...
To understand the push is to understand the need for the push. Voter turnout being my guess.
If I recall, you can register to vote at the same time you get your driver's license. I think it's literally checking a box. For some who can't or have no need to drive, it does make this an extra.
However, once you are...you can register 2b a mail in. The caveat is that you vote early. But how many people are still undecided? Advantage being voting at home (w/Google).