If I told you some of the things I've done and how I did 'em you'd probably be to stunned to post. I'm not at ease with a young kid being exposed to large amounts of N absorbed in their bodies, she's not my kid so it's not my business. That's exactly correct I lack formal training for most of what I've done and still do today because the formal training wasn't available when I started diving. I just took AWO last year after 41 years of diving because the dive OP owners that took me out in the past have mostly all retired and the new ones are...well...like you. That was $300.00 dollars I shouldn't have had to spend.
You expect dive ops to base their risk assessment and liability off the fact that you're to cheap to spend the money on AOW to prove your skills and get certified? I've got news for you, just because you've been doing it for 30 years doesn't mean you've been doing it right, maybe you have or maybe you've been lucky. Maybe you should consider why we have standards and instructors. I can assure you it isn't to get rich off the pathetic amount of profit gained from training classes.