But people have varying levels of risk and the credit score is how they categorize that risk. If you force banks to not look at past history (all a credit score is), sure, they will accept that risk but be prepared to pay 30% interest on a car loan.
There are plenty of creditors today who have no or poor credit, and they can still get loans (especially for cars) it’s just at absurd interest rates. Eliminating credit scores will just put everyone in the same (very high) bracket.
If you want to actually fix the system, substantially raise the barrier to non-revolving accounts reporting debts and make a reasonable process to dispute that debt.
Credit agencies should be more mediators than data-sellers.