Originally Posted by
Lord Raziere
Technically they're created by the previous Guardian who is no longer alive and the current Guardian doesn't trust them.
So the legitimacy IS kind of questionable. But then again, Android 23's Guardianship is kind of questionable as well, given the strange circumstances she acquired it through. Really, the whole thing is a big debate of legitimacy that may or not be worth having, but neither party seems to really care to talk about for other more important things to do.