Age restrictions to stay in a hostel in paris by yourself?

Most hostels in Paris don’t have an age limit, but since you’re considered a minor, you’ll likely need authorization from a parent or legal guardian. Normally, this means a signed letter with contact information that gives you permission to stay alone, along with a copy of that person’s national ID (like a passport). You should make reservations before you go, and contact the hostel to see if they have any further requirements.