I also thought this was a windup
Can't remember all the points, but I've just passed my PPL, and I had 7 different instructors. The school asked me about this, and I said it wasn't a problem, because each had their own way of teaching things, and pointed things out that others didn't etc. This approach does not however suit everybody, infact, I'm probably in the minority, but I was given the choice of *trying* to get the same instructor (or two) for the duration or not caring. I did prefer some to others; and one (due to a later ground based incident) that I no longer wish to fly with.
I had to fly four hours worth of solo circuits before they let me move onto anything else.
I had two navigation trips with two different instructors before they let me out of the circuit on my own. I also had to show (in the air) that I could work the ADF and VOR before they cut me loose.
Any sign of dodgy weather put a stop to all solo proceedings, and one had to, again demonstrate, that you had the knowledge of weather and airfields before doing QXC.
As somebody else mentioned, you also had to pass some of the written exams, and know who to talk to en-route.
Golden rule was, if your not sure, get on the radio and talk to somebody !!!!
Just reading the first post..... I really can't believe that.