I agree that the government should not rate credit worthiness.

But we need a trusted third party that tracks your credit history (just the data of what/when you got credits, and missed payments). Something that the banks and loan shop could consult and compute their own risk assessment.

In some European countries, the central bank is the notary authority that keeps track of bad actors (missed payments, bounced checks, etc.) and private banks or loan shop can consult the registry and make their own decision if you are not credit worthy.