Why did God create the Lost?

Question:  Why did God not prevent the birth of those whom He knew that would  ultimately reject Him and perish forever as unbelievers in Hell?

Answer:  In the Parable of the Wheat and the Tares at Matthew 13:24-30, this matter is addressed. God will wait until the end, in order to sort it out. If God knows that a parent will ultimately grow up to reject Him, what if God also knew that their child would instead grow up to believe in Him? Preventing the birth of the parent, eliminates the birth of the child.