Sorry to hear of your losses Limpy and Asher.
I trained as a legal secretary in 1990, I had a choice, either legal or medical. I then went on to work for the NHS in their legal dept - there weren't trusts back then.
I just clicked the link Taz provided above and was a bit shocked to be honest. It used to be that you needed 5 O'Levels, including in Maths and English, to get on to the year-long course (for either discipline). It was 10 hours a week, 2 hours or which was subject specific, so if it was legal you had to learn about the law and if it was medical you had to learn about medicine. Of course, this didn't make you an expert, but it did mean you were familiar with the terminology and context. You also had to be good at shorthand and have a typing speed in excess of 120 wpm (words per minute). Point being, it wasn't unusual for me to accompany my solicitor who specialised in medical (in much the same way as CLKD describes) to make sure what needed to be done happened as quickly as possible. By being present, I could offer a much speedier admin turn around than if everything had to be hauled back to the office first. I also had to belong to a professional body, was licenced, and we could be 'struck off' (lose our careers) if we didn't adhere to proper practice. Pay was actually really good, but you did have to put in the hours, no going home just because it was 5.30pm if there was anything urgent outstanding.
I think the profession has changed, in that it's been deprofessionalised. As the text in the link says 'You will get the training you need to do the job. This includes an introduction to the department, how to use the IT and phone equipment and the procedures to follow. You may also have training in customer care' - this is in sharp contrast to actually being qualified and certified. And so the salaries match that kind of low expectation, which means anyone like me, who was good at my job, went off to work in operations because that's where the money was.
I do find it frustrating though, to encounter so many of these deprofessionalised admin, who don't seem to know their backside from their elbow, because they don't get the job done and I swear to god that's why we're in such a bureaucratic mess now.