To reiterate the other comments - 15 minute cities are about _adding_ things so _more is accessible_ within a 15 minute travel time, such as stores, schools, public transit etc. Nothing to do with restrictions. Check this podcast out for a thorough debunking of all the misinformation about 15 minute cities, including the "Oxford trial" which has absolutely nothing to do with 15 minute cities - https://youtu.be/VxQBCIvwIho?si=tTnQS78TyUpp4gv8