....climbing the traditional ladder of experience.
Tradition died a long time ago. You know it too. One could argue, tradition died due to P2F and so the circular arguments roll on.
Regardless, at this point in time:
GA in Europe is minimal
GA employment in Europe where it exists is highly nepotistic
GA employment in Europe requires a totally unrealistic set of minimums from pilots which they ain't never going to get.
GA in the UK is dead and has been for many years
Instruction? not everyone wants to or can teach. And as for turboprops? How many do BA, easyJet, Ryanair, Thomas Cook, Thomson, Monarch et all have? Excluding the few Island Hoppers still in BA's posession, the answer is that out of nearly 500 aircraft, there are no turboprops to be found.