In Sweden, it is generally common for people to lock their bikes when leaving them unattended in public areas. However, the specific locking practices can vary depending on the location and the individual's perception of safety.
While it may appear that there are many unattended bikes without locks, it's important to note that not all locking mechanisms are immediately visible. Many bike owners in Sweden use sturdy locks that are not easily recognizable at first glance, such as heavy-duty chain locks or U-locks, which are secured around the frame and the bike rack.
Additionally, some areas in Sweden, particularly in smaller towns or rural areas, have lower instances of bike theft, which can contribute to a perception that bikes are left unlocked. However, in larger cities like Stockholm, Gothenburg, or Malmö, it is still advisable to use a reliable bike lock to deter theft.
It's worth mentioning that despite precautions, bike theft can occur anywhere, and it's always recommended to use a lock to secure your bike whenever you leave it unattended in public.