In France, a 17-year-old can stay in a hotel alone, but it is not a "guaranteed" right; it is subject to individual hotel policies and the submission of specific documents. Most French hotels and youth hostels (like MIJE) will accept 17-year-old guests provided they present a signed parental authorization form and a photocopy of the parent's ID at check-in. This is because, under French law, a minor cannot enter into a legal contract (the hotel booking) without parental consent. While some luxury hotels may strictly enforce an 18+ policy for insurance reasons, the vast majority of mid-range and budget accommodations in 2026 are "minor-friendly," provided the traveler is nearly of age and has the proper paperwork to prove their parents have sanctioned the stay.