If you present a driver’s license that is a comparative signature.
If you present a new RealID driver’s license that would be even better and RealID since it is vetted could serve as an ideal voter identification.
In a real world yes however, no matter how much common sense it makes to present a RealID driver’s license in order to vote it will probably never happen at least in my lifetime, because voting is the biggest cheat next to taxes; and fleecing the taxpayers over climate change is right up there in the big leagues as well.
Face it, this country is full of cheats, liars, and scam artists, more so on the left but the right has its fair share as well.
We are talking about mail-in ballots here.
You don’t present ANY ID with a mail-in ballot.