In Germany it‘s similar. You are required to have an ID with you. It’s not strictly illegal though to not have it on you but if you happen to have business with police (be it an accident, random traffic stop or you having part in illegal activities), when you don’t have it on you, they can make you come to the police station with them to confirm your identity, even if they wouldn’t otherwise.
You are required to be able to ID yourself, “Ausweispflicht”, but that does not require you to carry your physical ID with you when leaving your house, it just requires you to own said ID once you reach the age of 16.
The cops will still take you with them to the station when you don’t have an ID to show if they ask for it. You are by law required to identify yourself with a physical ID.
So yes, while it’s not illegal to not carry your ID on you, it’s still to your own detriment if you cannot produce it.
In Germany it‘s similar. You are required to have an ID with you. It’s not strictly illegal though to not have it on you but if you happen to have business with police (be it an accident, random traffic stop or you having part in illegal activities), when you don’t have it on you, they can make you come to the police station with them to confirm your identity, even if they wouldn’t otherwise.
You are required to be able to ID yourself, “Ausweispflicht”, but that does not require you to carry your physical ID with you when leaving your house, it just requires you to own said ID once you reach the age of 16.
https://www.deurag.de/blog/mitfuehrpflicht-des-personalausweises/
The cops will still take you with them to the station when you don’t have an ID to show if they ask for it. You are by law required to identify yourself with a physical ID.
So yes, while it’s not illegal to not carry your ID on you, it’s still to your own detriment if you cannot produce it.