IDs are not routinely checked when voting in Germany at least. But there's no voter registration necessary because everyone is registered with their municipality and automatically gets their voting paperwork sent home. You just need that paperwork to vote, no ID. I wouldn't change that setup because giving poll workers ways to refuse voters is not a good thing.

Btw. I've never had to wait in line for more than a minute to vote. Voting booths are usually in walking distance (might be different in very rural areas) and each accommodates maybe 250 people for the day.

Also, there are polling stations in prison. The right to vote can't be taken away.