This is a rules questions for DMs. Certain races (Rakshasa, Yuan-ti Pureblood and Green Hag) are Monstrous, but can freely change into a human form. What's the ruling on whether such a character is allowed to go into both Andunor and the surface when in appropriate form and disguised and to spend extended time in those places? Does it matter if the character is created as a Outcast at start, and do they need to respect that Outcast status regardless of form and disguise?
For example, if a Green Hag starts in Andunor, is it permissible for the character to change into human form and walk straight into Cordor and spend time there (if disguised and trying to pass for human)? Likewise for a Yuan-ti that starts on the surface, is it permissible for the character to be on the surface in human form whilst at other times to visit Andunor in Pureblood form as a monster even without Outcast status?