Not needing docking stations that may require city planning and building permissions, the system spread rapidly on a global scale. At times "dockless bike-sharing systems" have been criticized as "rogue" systems instituted without respect for local authorities. In many cities entrepreneurial companies have independently introduced this system, despite a lack of adequate parking facilities. City officials lack regulation experience for this mode of transportation and social habits have not developed either. In some jurisdictions, authorities have confiscated "rogue" dockless bicycles that are improperly parked for potentially blocking pedestrian traffic on sidewalks and in other cases new laws have been introduced to regulate the shared bikes.