I did request my hospital file about a couple of years after an admission. It helped me recall that part of my life as I was hospitalised for about 5 months when I was 21.
I do always make sure I have a copy of my latest discharge summary in my first aid box for my carer and I make sure my GP has it just in case I have any immediate problems post discharge.
I think it's my health record so I should have it if I need it. My pdoc enters into a computer while I'm there. They are my professional support team and I need to be informed.

I also know mistakes and assumptions are easily made by doctors nurses and psychologists so I have to be aware and protect myself.