One fun experience, arriving in München and trying to buy ticket for the airport train online. The app requires your birthdate. The date selector starts from pr

One fun experience, arriving in München and trying to buy ticket for the airport train online. The app requires your birthdate. The date selector starts from present and only allows to go back one month at a time. So if you're 40 years old, you would need to click 480 times... We bought paper tickets from a machine . Machines work well compared to other countries though.