Hi BFU,
I've been in the industry for 26 yrs now, and I wouldn't want to go back and change anything in my professional career.
Sure it is a declining profession and to that end, if your son is that interested in aviation, he should be given all incouragement.
My Father did just that, pushed me to get my licenses, and it's been a varied and not a 9 to 5 job.
Northbrook college is one that seems to have a better rep than most.
We have had quite a few of work experience chaps from Northbrook, including Flying Mechanic [Top bloke by the way].
I've had access to sorts of things that others would not normally be able to do or see.
Sure I could have earned more in other areas, but that's not the sole reason for working where I am, I truelly enjoy my chosen career, as do many of us out there.
Final thought,
If he wants stacks on loot, go work in computer, if he wants good job satisfaction and variety, then look our way.
Jetset41