Apple needs to change this ASAP, it is a huge bug!!!
I have had an apple id for years and used a debit Card with no problems, today I wanted to change my birthdate on my daugthers ID (Family sharing) and are told to provide a Credit Card, what has that got to do with it?
USA is not the only country in the World wake up! I live in Denmark and most of the population have a so called VISA/Dankort, which is a Debitcard, but everywhere else in the World where I can use a VISA I can use this Card, but apparantly not by Apple when I need to change a Birthdate.
Why should I go to a bank and ask for a creditcard in order to change the birthdate ? Makes no sense