In the Scandinavian countries, guest ID checking practice varies by hotel group, hotel, hotel employee, loyalty program participation, and even what else is going on on-site or locally at the time. While the Sheraton in Stockholm tends to be rather particular about passport details, plenty of hotels a 1-10 minute walk away from it are generally not. [Legal or not, the entire guest register at Sheraton has sometimes been vetted offsite. Sort of the same with the Grand Hotel — another Stockholm hotel that has been almost as passport hungry as the Sheraton at times. Both of these hotels don’t seem to be positioned well to catch most non-registered visitors if the visitors come in without luggage in hand and happen to hold a hotel key of their own (whether the key really works or not) and follow into the elevators someone with a working key while looking like a tourist).]

There are Scandinavian hotels with self check-in kiosks that work for direct booked reservations, and then they tend to not really have it in them as much to check ID at check-in; rather often they seem to assume the bank card working in the payment devices is enough for them.

I find it rather civilized that on award night bookings in Denmark, Norway and Sweden that at some hotels I can show up, state a name and the length of the reservation and they do the rest without asking to be shown ID or even a bank card.

AirBnb has the ID of the person whose account is used for the reservations in these areas, but hosts checking does not seem to be common.