https://en.wikipedia.org/wiki/Identity_documents_in_Sweden https://en.wikipedia.org/wiki/Identity_documents_in_Sweden: "There are several identity documents use

https://en.wikipedia.org/wiki/Identity_documents_in_Sweden https://en.wikipedia.org/wiki/Identity_documents_in_Sweden: "There are several identity documents used in Sweden. None are compulsory by law, meaning that there is no formal penalty for not possessing one." In practice things are more difficult without one one. (Mine expired in January. I didn't notice until I needed to pick up a package a few weeks ago. Ended up using my US passport instead.) https://en.wikipedia.org/wiki/Identity_document https://en.wikipedia.org/wiki/Identity_document says "A number of countries have voluntary identity card schemes. These include Austria, Belize, Finland, France (see France section), Hungary (however, all citizens of Hungary must have at least one of: valid passport, photo-based driving licence, or the National ID card), Iceland, Ireland, Norway, Saint Lucia, Sweden, Switzerland and the United States." Checking Finland, https://en.wikipedia.org/wiki/Finnish_identity_card https://en.wikipedia.org/wiki/Finnish_identity_card says it's about the same as Sweden: "Possession of an ID card or any ID document is non-compulsory in Finland, though interactions with officials and companies, like voting, picking up a parcel from Posti offices or buying alcohol when a salesperson suspects buyer to be under 18 or 30 years old, can be difficult or impossible without an ID card, a passport or a driving licence." As I recall, in Sweden to vote without id you need someone who does have an id and knows you to vouch for you.