Ha! So Exeter have changed then! No parents! My DD discovered cosy, warm and small was the last thing she wanted. Many girls from my DD's boarding schools loved Exeter for those reasons, however. It was like school. However, my DD quickly learned she didn't want somewhere like school. Looking at Exeter and Newcastle are chalk and cheese! (My sister lives in Newcastle). It shows that just selecting on course content alone, is not the way forward for many students because other factors come into play. Clearly an open day cannot help with drunks in the hotel.
Newcastle really is party central. I am surprised you did not know that, Twitter. Think Gazza etc. However, many students love that about the city. It is also quite a cheap place to live. If your DD would be totally put off, it is a waste of time going there as she discovered with cosy Exeter!
DD rarely looked at Halls. They are all much of a muchness really. You can have a better look on an offer day. DD was only considering a couple of universities seriously so did not want to waste time trudging round hall after hall. She just didn't care that much but a video would be helpful.I think planning the day is important and if certain elements are too time consuming, do not do them. Universities put all the info re talks on the web site, so plan around the important bits. I am not sure anyone should choose a university based on narrow corridor or a shared bathroom!
DD was far more interested in the Department and the possible options, but she did not go into it forensically because these can change. She seemed to know what her top choices were, so as long as the visit was not a disaster, she would fit in perfectly well. However, she is super confident and a few hens in Newcastle wouldn't put her off. It is hardly a judgement on the quality of the university!
I think that Brexit has changed the European scene. Worldwide students who can go anywhere may now feel we are not welcoming here. I think overseas students already here for school will still look here, but others have a big wide world to choose from including the USA, Canada, and Australia. America may not be so appealing now either!
I think the fees have not put anyone off in recent years. The stats have said otherwise, but I do think the EU is a bigger problem. However, some Departments such as MFL are struggling to get suitable candidates from anywhere. It could be that the university sector is too big now and the lesser universitis will suffer (not that I am sugesting yours is lesser OP). There is also a pecking order. Those nearer the bottom of the tables with empty spaces trying to recruit lots of mature students will not necessarily be attractive to younger students. I think the drop out rates also tell a story. If a university recruits like mad, and ends up with more unsuitable students with low grades, does this get reflected in drop-out rates?
Doing what parents dictate is a very big issue for Asian students. It is cultural and will not be changed easily. My DDs were both at school with girls who had a lot of pressure to do STEM degrees (medicine, dentist, pharmacy, maths, etc, or economics! Even my local Sri Lankan garage owner could not imagine why my DD wanted to do French and Italian! "What job will she get?" - he wondered. She is now a Barrister and he is happy!