However, we expected DD to take the lead and decide what she wanted to look at and ask questions herself, followed by the odd question arising out of the conversation ourselves. I have to say, being with her made me realise she is ready to go, she asked lots of sensible questions, clearly understood the subject.
You see, that sounds perfectly sensible. My only gripe with parents attending is that in a significant minority of ODs I've done in the last couple of years, the prospective students 'child' has retreated behind the parent, who has asked all the questions and done all the engaging, while the 'child' stands in total silence.
Well, that and the fact that, when giving a subject lecture, you can be talking to a lecture theatre which has more family members in it than prospective students, because some potential students brought both parents, siblings too young to be left home alone, and their granny/uncle/best friend.