Read a very good report a few years ago in a rag entitled "stop dreaming, start flying".
Unfortunately the article was US based only, but explained the growth in the industry, ageing pilots, pressure on training schools etc. very good read.
There is a web-site entitled the same and I believe it is a drive in the states to encourage more people to take up aviation, with a view to going commercial.
In this respect it may be a little biased, however it fairly convinced me.
I believe I still have it and can refer the proper title later.
VF