There is also an interview (unfortunately in German, but automatically translated subtitles are available) with the minister who is responsible for the bill: https://www.youtube.com/watch?v=8Sm7Q1bjW5o
Asked by the interviewer if this isn't the same as asking bar owners to check the ID of every visitor just in case a bar fight breaks out, the minister answered:
"Das ist ja ein Blödsinn, was sie da reden"
(This is total nonsense you are talking about)
"Das ist ja ein Blödsinn, was sie da reden" (This is total nonsense you are talking about)