How might a college degree serve as a certification, like in the used car market with a car inspection? What effect might this have on the market?

In order to get a certification from automobile service excellence to become an automotive appraiser, you need a college degree. This will make your appraisal result more trustworthy for the consumers.

The effect this might have on the market : it will prevent any undersell or oversell used or damaged automotive products to be sold in the market