minos tells icarus that the plan is dangerous. why does he want them to take this risk?

Minos tells Icarus that the plan is dangerous because he recognizes the inherent risks in their escape attempt using wings made of feathers and wax. Despite the danger, Minos wants them to take the risk because there was no other way for Daedalus and Icarus to escape the labyrinth on Crete where they were imprisoned. Additionally, Minos views Daedalus and Icarus as threats due to Daedalus's cunning and inventive skills—which had already helped Theseus defeat the Minotaur—and probably wants to test their resolve or demonstrate the futility of their efforts. The plan, though dangerous, is their only chance for freedom from captivity imposed by Minos himself. In summary, Minos acknowledges the danger but sees no alternative path to escape, and possibly also sees this risk as a test or consequence of the threat Daedalus poses to his authority. Daedalus and Icarus accept the risk because escaping the labyrinth by flight is their only way out.