It‘s true - passports get invalid after 10 years here. I translated this source [1]:
„The photographers in Ingolstadt and the surrounding area also take a critical view of the idea of the Gerolfingen Minister of the Interior. Very critically. An adjective that keeps coming up: threatening his very existence. Theresia Häusler from Foto Porst Am Stein says: "We take 20 to 40 passport photos per day." At normal market prices of between 15 and 20 euros for the pictures, you can work out what the loss of revenue per day is. Up to 50 percent of the revenues could be lost in your branch, says Häusler“
I mean, you don't really need these businesses nowadays that much. Just take a picture with your phone, no need to develop it.
„The photographers in Ingolstadt and the surrounding area also take a critical view of the idea of the Gerolfingen Minister of the Interior. Very critically. An adjective that keeps coming up: threatening his very existence. Theresia Häusler from Foto Porst Am Stein says: "We take 20 to 40 passport photos per day." At normal market prices of between 15 and 20 euros for the pictures, you can work out what the loss of revenue per day is. Up to 50 percent of the revenues could be lost in your branch, says Häusler“
I mean, you don't really need these businesses nowadays that much. Just take a picture with your phone, no need to develop it.
[1]: https://www.donaukurier.de/lokales/ingolstadt/Existenzbedroh... (German)