If your vehicle is showing center of the tire tread is worn down faster than the edges, here are the most likely causes and the parts you'll need to fix each one.
Inflating tires beyond the vehicle manufacturer's recommended pressure causes the center of the tread to bulge outward. This forces the center of the tire to carry most of the vehicle's weight, wearing it out prematurely.
Driven wheels (especially on high-torque or heavy vehicles) can naturally wear the center of the tread faster due to acceleration forces. Failing to rotate the tires prevents this wear from evening out across all four tires.
Mounting a tire that is too wide for the wheel rim forces the center of the tread outward. This creates a permanent bulge that wears the center quickly, mimicking overinflation regardless of the actual air pressure.