'I believe that there should be recognition that some people are more academically able than others'
There IS recognition of ability (in so far as any exam is able to do this with any amount of accuracy) - A Level grades run from A-E. It is still only a minority who achieve an A grade. And don't forget that many people don't do A Levels at all and many people don't finish them esp. now that AS levels act as a filter which partially explains the relative increase in the higher grades.
'and over the last few years it would seem that the line between the very able and the fairly able has been smudged, giving more and more people grade A's.'
But why do so many people assume that the increase in A grades is due to a lowering of standards and not more students achieving greater success? Has it become easier to run a mile at a quicker pace? No. Yet times have got better and better over time. Just so, students and teachers have got better at exams for all sorts of reasons. We've got more awareness of how students' learn and how to gain their interest for example. The examination process is more transparent (there are mark schemes which are accessilbe after the exam so teachers and students can see how to meet assessment objectives more easily ratehr than examiners making random decisions in smoke filled rooms without deference to anyone or any system). Arguably students are more motivated because tehre's more competition etc etc Students and teachers have access to more and better resources like the Net.
If your grades at A Level were mediocre then you're actually saying that you shouldn't and probably a lot of your friend shouldn't have gone to university. How bizarre.
'I am against the govt initiative that 50% of the population should have a degree.'
We have the lowest entrance to HE of any European country and America which I believe has about 50%. I really don't think they have a lack of bricklayers. The idea that letting more people into uni will somehow mean we have no one to do manual, low-paid work is a myth.
'Some careers (such as practical skills like plumbing and bricklaying) don't lend themselves to that style of acacdemic study'
I wish some of my plumbers, electricians etc had trained for 3 years and got a degree in their field. Why not?
And what about the shortage of doctors, teachers, scientists, midwives etc? I teach quite a few students who are very able at science but are finding it hard to get accepted at med school because they haven't got a Grade A or B at GCSE for English. How ridiculous.
'and we just can't all be white collar workers'
Increasingly employment in this country requires less manual work and more communication, IT skills etc. Employers bemoan the lack of expertise in these areas.