Originally Posted by ShyTorque
You're missing the point. In Class G it isn't a decision for an ATCO to make.
It is, up to the point the pilot of whichever aircraft is asked to do something declines the request.
From the section in the AIP dealing with airspace classification, specifically with Class G;
Note 1: Where Air Traffic Control Units provide ATS to traffic outside Controlled Airspace, separation may be provided between known flights.
Note 2: Aircraft receiving services from Air Traffic Control Units are expected to comply with clearances and instructions unless the pilot advises otherwise.