Thanks @NorWouldTilly .
To the posters talking about pastoral support at university, I absolutely would agree - it is often very poor compared to what you get at school.
I stand by my statement that they have got better in recent years in terms of providing support plans and giving staff better training - this has become much more widespread after the outbreaks of suicide at a couple of universities a few years ago - but it is still much less effective than most parents realise and worlds away from what you get used to in most secondary schools.
I always make this very clear to our parents when our children with support plans and other needs go on to university. The university has no obligation and often no right to contact you regarding your child's wellbeing or academic performance, because your child is an adult and is considered to have capacity and confidentiality over their own private medical or academic information. You can't call up the welfare office and demand to speak to someone about your child and what support is being provided to them - your child has to have given their explicit consent for their information to be shared, and if they haven't, then the uni can't tell you anything. You are powerless in a way you are not in a school environment. There are lots of cases where parents don't realise their child is failing, parents don't realise their child hasn't left their room or attended lectures in days, and so on.
You also have to be very aware that most lecturers are not interested in pastoral care and do not get to know their students on any kind of personal level. You cannot rely on a tutor to notice your child is struggling and to advocate for them to get help. Many university lecturers are also not trained to teach (you don't have to be - you just need a PhD) - and have very little understanding of SEN and differentiated teaching methods.
Some lecturers are fantastic and caring - but the majority just want to teach and do their research. They don't want to get involved with students' wellbeing and they will actively make themselves unavailable, pushing everything to the welfare departments, which are often chronically understaffed.
So, absolutely do ask as many questions as you can of the welfare department. But for a young person who has been too socially anxious to attend school, a university environment is not a place where they're going to get the kind of nurturing, wrap-around support they would need to access their education. Universities are too large and courses are too large to provide this kind of service, which is why many students with needs do struggle and end up dropping out.
There is a huge discrepancy in pastoral care between secondary and further education and I believe it is something that we need to do more work on as a sector. There are more and more students with SEN and SEMH coming through the education system now and HE just hasn't caught up.