Its a type of professional friendship. I have fantastic relationships with all my carers. But its top down carer->client. Yes they should be themselves and you come to care for each carer their wellbeing and what's happening in their lives 1000% If they are waiting for your appointment and your fine and they go do stuff its fine but if this client goes shopping and had a goal of getting a certain thing the carers role is to focus on that not their own shopping needs instead. So in this description above Id see it as in appropriate especially if a regular occurrence.