[Therbi]

Its just a piece of plastic that spends it whole like getting feet dragged across it. Isnt it doing what its supposed to?
Wouldnt trying to protect that be like trying to protect your floor mats?
If it really does bother you that much you could just swap it out.

https://toyotaparts.ourismantoyotaofrichmond.com/oem-parts/toyota-scuff-plate-6791408030c0?srsltid=AfmBOorAD-5tvXHVcXeLHZ4iSCL63iOvQrP3niGcD7BBxMNYun2mW8ci