I was a service instructor with the ATC for around seven years, and yes it is true that there are plenty of 'wannabees', and a quantity of poor-quality individuals who should never be allowed to supervise young adults.
However, there is also a very large percentage of highly motivated (they have to be, they are volunteers) hgh-quality people, who may be successful in civvie street already and give up much of their own time to teach, take kids flying/gliding, AT expeds, and provide a taste what service ethos and life.
I think we tend to see extremes at times - particularly Easter/Summer camp activity. On the whole, they're a good bunch though.
SBG
P.S. I once saw an RAFVR(T) Flt Lt in a grow bag in LOO Officers' Mess, wearing a flying suit with a very odd brevet...wandered over for a chat and a closer look only to find out that the wings were "Model Aircraft Pilot".......