[Yello] Age limit Yello concert

Hello! Does anyone know if there is a minimum age limit for the Yello concert in Berlin October 30th? I have asked both the venue (Kraftwerk Berlin) and the ticket company (Eventim) but both give me nonsense answers. So I suspect there is no limit. I am bringing my son. He is 13 today but will turn 14 a couple of days after the concert. Thanks Jonas Flodin Schweden