Why doesn't God want us to know?

There was nothing essentially evil about the tree or the fruit of the tree. It is unlikely that eating the fruit truly gave Adam and Eve any further knowledge. It was the act of disobedience that opened Adam and Eve’s eyes to evil. Their sin of disobeying God brought sin and evil into the world and into their lives. Eating the fruit, as an act of disobedience against God, was what gave Adam and Eve knowledge of evil