As above. Only reason I have known handbrake shoes to be replaced is because of becoming unglued
One of the causes for this happening is sudden hard applications of the handbrake whilst the rear wheels are revolving such as on the brake tester during an MOT. Ideally, the handbrake should be applied very gently / slowly, and once the inboard handbrake shoes have contacted the inside of the drum, the handbrake can then be applied as firmly as required. I have previously asked testers that haven't done my Omega before to be gentle with the handbrake until the shoes have contacted the drum for this very reason.
I would only replace the inboard shoes when absolutely necessary. Because they aren't used like normal brake pads, and therefore don't bed in as well, the handbrake can be sh*te for a while with new shoes, even with gentle applications travelling at slow speeds in an attempt to bed them in.
I am always envious of the performance of brakes on a brand new car. I appreciate everything is new, but even with cars with delivery mileage of only 5 miles, the brakes seem fully bedded in - something which is difficult to replicate with an older vehicle that has had all new discs / pads all round.