As a Dane living in Denmark, I don’t think it’s a big problem. We don’t show passports when entering Germany, only when returning to Denmark. And several times, if I forgot my passport, a driver’s license has been sufficient. Passport control is not really, if I have to be direct, aimed at the locals. Unfortunately, Schengen has made it easy for organized crime. On the simpler end, for example, bicycle theft, cargo b…
A FlixBus coming from Denmark is likely to be checked in Flensburg.