Gertrude nobody has asked me that but here goes
The reason I wanted to know was because a guy at the aero club last week said it was a mandatory thing to do to give a passenger briefing, although I do give a briefing I thought I did it Because I thought it was good practice to do so , not because it is mandatory for a private flight I then started to wonder how many people are like me , and how many don't know they have too and how many just don't bother maybe it's something the CAA should advertise more