Government school parents don’t want to have to face the fact that their favorite welfare entitlement - “free” daycare in a government medium security institution - is making their children dumb as rocks. The Government education special interests want their money without accountability. Politicians don’t want to anger the education special interests by exposing their failure. It’s all pretty simple. This is not to say all of the testing is well designed or useful, but the real issue is aversion to exposing the truth about government schools.