Some bicyclists in Palo Alto do, probably because they can't take their Ferrari's with them. A former business partner had a ~$8k bicycle stolen from Castro St. downtown in a very public area. All it takes to steal is 30 seconds and a battery-powered angle grinder. If someone doesn't have Tile, AirTag, and a GPS tracker on such a bike, then they're an idiot.
Hahaha. I hope a precondition to any bicycle theft includes requires 1 or more tracking devices and not transiting anywhere near a major metropolitan area or any city area with a drug problem.
Jesus I wouldn't park a $15k bike anywhere...