Quote From Dunham:
I think it is a bit problematic if something like that is seen as normal. In my opinion it isn't. I'm not a UK student but I know at least 30 PhD students (all the people from my old universities and the new one I'm now working) and none of them has major problems with their supervisors. It might comfort people to hear something like that or encourage them to pull trough but if seeing the university counselor (I never ever heard of something like that before I visited this site) is considered as a common experience, then something is going terribly wrong. The majority of people I know enjoy their PhDs most of the time, don't suffer from mental health problems and so on and I think that's how it should be, despite the fact that there are of course sometimes difficult periods. A PhD does not come easy.
Pretty much every student/person I know has had some sort of issue with their supervisor/manager.
Many managers and supervisors don't have formal training and many never get any feedback or act upon it when they do get it, so it's not really surprising.
Plus, for some students fresh out of undergrad or from different international backgrounds, managing a supervisory/managerial relationship is a new experience.
Furthermore, it's not unique to this forum. It's a common issue with PhDs discussed worldwide - I'm surprised you have never heard of it before.