Microchipping reunites lost cats with owners, preventing prolonged welfare harm from displacement. Mandatory microchipping in the UK has improved cat welfare.
Cats that become lost face severe welfare impacts - disorientation, exposure, starvation, and predation risk. Microchipped cats are reunited with their owners in days rather than weeks or never. Mandatory microchipping removes the identification gap that previously meant many lost cats never returned home, protecting individual cat welfare by enabling rapid reunion.