Anyone that has a keyworker at a cmht ,do you feel like they have some kind of hold over you?

My key worker who is a social worker,every week is now asking me if ive been drinking, when did i last drink,then how often ,how much and is very insistent that i tell him ,i admit i am drinking a little too much at the moment but do these people at the community mental health teams think they own you? i am 34 after all, i have Bpd, and i realise there ,there to help and support and im very thank full but ......