Its sad when anyone applies for any professional position and does not prepare nor take it with a professional level of seriousness.
I think there are broadly two categories of new PPL instructor.
The first group always planned on becoming an FI. They knew a couple of instructors before they started out, were aware of pay and conditions. They aspired to the job and understood positions to be scarce and valuable. They may very well be headed for the airline in the end but are aware that a couple of thousand GA hours and some networking is their future. They attack the present with gusto because they are making progress as planned towards that glittering prize.
The second group never planned on becoming an FI. They didn't know any instructors before they started out. They are amazed by the poor pay and conditions. They aspire only to an airline job and being an FI is a necessary evil. They resent having to come to work to fly crappy aeroplanes with rubbish students for peanuts. There seems no hope of escaping it and they are jealous of someone they heard of who got a job with Ryanair. They dislike their work, take little pride in it and the misery of not being in an airline makes them miserable.
Now. I know its not as clear cut as two groups. I know that you can start in the former and gravitate towards the latter over time.
But generally thats the why I found things when I was a full time instructor.
Looking back I know I was in the former camp and I am now cosily in the RHS. I recall colleagues from the latter group and not one ever made it.
Carpe Diem - seems to be the only difference.
Cheers
WWW