"Food spoilage" is putting it mildly. Mice have short generations. A single mouse can have up to ten litters in one year. If unchecked, a mouse population will quickly turn all your stored food into mice.
Here’s some video from four years ago https://youtu.be/rAdNJ1jczVI?si=HhB-P5lcAz3zhuMI
FWIW I'm in favor of dropping a few billion AUD into cat control programs and deploying technologies like felixer everywhere. Up until now it's just been an underfunded borderline volunteer affair.