Google will only permit users to log-on if they have their privacy setting set to 'Medium' at their highest; if the user sets their privacy to 'High', which will exclude tracking cookies, they aren't permitted to log-on. I decided to play a few games with this and set my privacy to medium to log on and then reset to high once I had uploaded a film. Consequential to this YouTube decided to deny me access to my accounts for 'PenrithBeacon' and 'austerfive' so there won't be any more films from me on YouTube.
Now I value my privacy and therefore I have chosen not to share my videos on the internet any more. My thanks to all who have been kind enough to send me appreciative comments in the past, but from now on, with some regret, my videos will only be seen by me.