He tells his boss the story of the wooden horse. I understood that fake memories were given to replicants to help "stabilize" them. But if so, why such a traumatic childhood? And is the reason he knows the memories are fake is because he has been told this? But all replicants know they are replicants so it is not to fool them into thinking they are human.
So if it is to try to give them a normal psyche so that they behave more normally, why this orphanage thing?
Could a traumatic childhood memory help make replicants more tractable? I had only considered the purpose was to fool replicants -- I think but I forget that that is why Rachel had been given extensive memories, she did not know she was one? But Leon, Roy Batty definitely knew they were replicants.