Solicitors advise. Clients instruct.
If solicitors are unhappy with instructions, they should come off record. Otherwise they accept and act on instructions.
If clients are unhappy with solicitor, they should move to another solicitor.
Mostly, in my own practice, I will require instructions in writing/email - clients have a most peculiar habit of disremembering having given verbal instructions when it all goes belly-up! The client does not need to be physically present in the office.
mf