And let's not talk about the landline broadband.... our rented appartment had a meager 1MBit download speed and 10MBit upload (yes, the reverse from what you would expect).
On the Autobahn, on many, many kilometers we had Edge only.
Compare that to my last travel to Iran: we had very fast LTE almost everywhere especially in the middle of the desert (it was heavily censored, but the infrastructure was working).
Even very close to big cities like Frankfurt, having an uninterrupted phone call is a difficult thing to have.