Jeez Raccoon, you're lining up everything I've paid money for
That's Chris Pearcy's lockout course. If you're thinking of doing this professionally, I'd unequivocally recommend it. I'm not saying it's necessarily the best option, having tried no others, nor that it's flawless, but it does exactly what *I* wanted it to and that's probably not far from what you want.
Chris himself isn't actually a full-service locksmith, far as I know, so the focus really is just lockouts. But it's comprehensive, which is the big thing; techniques aside, he goes into (actually focuses on) marketing, legalities, business issues, and the like. Basically, he does what I used to call in web design "laying the landscape." You get through this course and you'll know where you stand and how the business works. You may not know every detail and obviously you may not actually be able to perform (m)any of these skills without practice. But you'll understand what's important, what's not, how to do x and y to get to z, and what it all means, and most of all have a general level of comfort that you've got the hang of it and there's not some massive sector of this cr*p you're not aware of.
Essentially what I did was hang around this site for a while, then got the interest in pursuing this professionally, bought Chris's course, and stuck around here to round out mah knowledge. You can indeed learn all sorts of goofy stuff that the course won't mention. But remember that he really is giving you everything you
need to know -- not everything he knows, because he's been doing this for a while and has picked up plenty of knowledge, but everything you actually need to do the job, assuming you acquire the skills he teaches.
And yes, you can keep hanging around here and pick up weird padlock vulnerabilities and stuff like bump keys. You can also email him at any time with questions and receive full and responsive help.
The videos with the course have pretty poor quality, but they do the trick.
I'd recommend it.