My last T actually said she's not supposed to give me advice, but then she followed that statement with a comment about how she thought we had a different relationship or were in a different place (not those exact words at all, but that was the gist of it) and then proceeded to give me advice. I liked her giving me advice. Not always in the moment, but i truly respected her point of view. I also knew that her word wasn't the law and could disagree with her if I wanted to. In general I would say advice giving from t is probably not a good idea though. I see how it could make things tricky and complicated.