Can I ask my friend's ID card to help him check in at the hotel?

According to the standard procedure, this kind of room opening is not allowed. Everyone who lives must register their ID cards, and several ID cards must register several people. It depends on the strictness of the local police station.

If caught, one person will be fined 200.

When the police station makes rounds, it usually checks the names of residents one by one, and sometimes it also checks the ID number.

Of course, I am in Inner Mongolia, and the situation in other places is not clear.