Unable to create family sharing
I am having an iPhone 5s.I need to set up a family sharing.Even though I have a valid payment method using visa. I am unable to set up’s because the system asks for an adult with a valid payment method for App Store and iTunes store where as I have both but I am on able to.I’m 18 years old by the way so am I having trouble to create family sharing due to my age.Or is there anything to do with Apple Pay cause I am having no Apple pay, so does the payment method me from apple pay? Please help