It is also worth noting that the 'pitance' you get (in many cases over £20 per hour) is someone elses hard earned cash - probably harder earned than the instructors role.
£20/hr may not sound like a pittance until you add up the fact that at most schools this is
only paid when you fly so briefings etc are not paid and if the wx is dud you are not paid either, on a good day you might fly 5 hours or so but even at this rate you will only be getting £500/week - by the time you add in the dud days probably well under £20,000pa not a great salary these days!