Why is it important to regularly change the brake pads on a BMW X4?

I have been using my BMW X4 for two years now and my mechanic recently told me that I need to change my brake pads. I don't understand why this is necessary, as my brakes seem to be working fine. Can someone provide some insight on the importance of regularly changing brake pads on a BMW X4?

Regularly changing brake pads is important because it ensures optimal braking performance and safety for your BMW X4. As brake pads wear down over time, they become less effective at stopping your car and can also cause further damage to other components in the braking system if not replaced.