@EnidSpyton the experience you describe with the guide who lectured at the world’s leading expert resonates with me on all sorts of levels!
I’m an experienced museum guide myself in my spare time as it happens, but I take people who have elected to go on a tour, which is a slightly different kettle of fish from those who just want to enjoy in peace.
I was once interviewed by the (rather fierce) curator at a particular museum and he asked me to describe five objects to see how I did. I picked a particular thing because I really liked it and applied my knowledge to it. I must have passed muster, but I was embarrassed afterwards to realise I’d been talking to the world expert on that particular object! That gave me the humility that your steward also described but, years and years later, I’m also quietly chuffed he found me acceptable!!
The flip side is that I absolutely hate being approached and talked at unless I’m open to it. I have a very strong background in art history and often have better knowledge of the artists etc. so please don’t share your fascinating fact about Reynolds or Gainsborough that I’ve heard 1,000 times before and so on and so forth unless I have joined a guided tour. For me the pleasure is in the looking and the discovery and the fitting in of that work into what I know of the artist or of that period. Unless I sense that you’re a like-minded soul, as can happen with some of the really good ones!
Both reading the room and pitching information in terms of duration and level are both absolutely skills that volunteers should be taught. A visit to Syon House - a long-awaited treat for my elderly mum - was ruined by an over-enthusiastic room steward whom we could not shake off. I would have been more abrupt with him, but she was a gentle soul who forebore rather more than was good for her, and she would have been even more upset had I remonstrated. We extricated ourselves eventually!
I suspect one of the issues with NT or other volunteers is that they are, to a large degree, drawn from a retired teacher demographic. To an extent that’s a transferable skill, but it has to be re-learnt in this context, as they’re not talking to a captive audience who must learn at all costs any more! And I agree with PP that volunteers should not gatekeep or say no for the sake of saying no - it riles me to hear volunteers demanding proof for quite sensitive concessions against organisational policies and so on (age, disability) for example. Again, a lot of that is down to a career in which, often rightly, they’ve had to say NO a lot but in this context it is absolutely NOT a transferable skill!
How much this puts people off coming back should be a matter of concern in a sector still struggling post-Covid and in a CoL crisis.