Re: What sort of clothes do you wear?
That should be ok, I guess. I don’t really know how Moroccan robes look like.
No they don’t because they hardly ever spend any time outdoors (except for the winter months).
Colourful abayas? You hardly ever see those. They’re almost always black, but do have ornamental stones on them. And yes you can wear them there. A lot of ladies (locals and foreigners) do so due to religious reasons.