I have insight on this as used to work in museum education and worked with many volunteers. They are told to interact with the visitors. Some managers are hotter on this than others and if a hot on interaction manager is on then the volunteers are generally more likely to jump on people. On a busy day this is easy to do as there are lots of people and you get people who want to interact and ask questions. On quiet days it's harder and as there are not so many visitors they end up trying to engage every visitor. Unfortunately many mooch in peace types also prefer the quiet days and often get jumped on by volunteers. Getting some volunteers to read the room re interactions is very very hard work.
IME historic properties attract certain personality of volunteer, the enthusiast, the lonely with interest in history, the interested in history, the looking for experience in historic properties in order to get a hen's teeth job in heritage and the ones on work experience.
The ones who are looking for experience are generally the best at letting people mooch, they tend to be younger in general and are generally socially aware. But can be frustrating as they are not so great at engaging visitors (especially the school work experience ones), some are brilliant at it (the ones who applied for the work experience themselves) and others are there because they were placed by the school.
The lonely with interest in history and those who are interested in history are a mixed bunch, some are socially aware and really good at letting people come to them. Others are very very overeager for any kind of social interaction and think just because you are in a historic property you must want to hear about all the details. These ones usually start well but tend to go on a bit but will get the hint eventually.
The enthusiasts are the worst, both to train and to encounter when visiting historic properties. They are often the most likely volunteers you encounter. They are brilliant in some respects because they know near enough everything about the room/ house/ grounds/ time period. When people write in the comment cards about knowledgeable guides these are usually the volunteers they have spoken to. They take the interact with visitors to the extreme. They are the most likely to follow you round the house, go on and on. Take you on random tours, take 3 hours to do a standard 40 minute tour. Many of them have a spiel and will recite it at you without taking any social cues on. They usually show up nearly every day and really enjoy sharing their extensive knowledge. Some visitors really love them, others find them very hard to navigate. I personally have found these types of volunteers are great for the history group bus tours (especially if the history group is focused on the time period/ significant person of the property) and the pensioner bus tours where they don't have an onward destination. They are not so great for the school groups and bus tours where they only have a 3 hour stop and need to get lunch in that time too.
@Mistralli the no pushchairs in ticket area, foyer thing is about fire hazards and clear escape routes. It's also likely that if someone sees your pushchair in the foyer and they have a pushchair they will either plonk their pushchair next to it in the way or insist theirs also joins. It becomes very tricky to manage. Do not underestimate the levels of bad pushchair parking. Pushchairs outside is easier. It's the same for motorised mobility scooters. What I would suggest is in the comment forms or after visiting emailing to suggest under cover pushchair and mobility scooter parking. Its not something on many property managers radar as most property managers are able bodied and have older or no children so don't think about pushchairs or mobility scooters, wheelchairs are different as it's a legal requirement to be accessible.Our venue introduced lockable pushchair parking after lots of comments.