It sounds to me like this 18 year old really has his act together. He already knows what he wants to do with his life and has taken the initiative to do it. That's more than I can say for a lot of people twice his age. I'm sure I am about to spark some sort of debate here, but I disagree with the idea that a person needs tons of dives to be experienced enough to be a good Instructor (On the Rec side, I don't know nearly enough about Tech to have an opinion there). First of all, being a good diver does not mean you will be a good Instructor. Beyond that, it's entirely possible for a person to have logged 1000 dives by doing stupid stuff 1000 times. Do you want that person teaching your loved one how to dive? Let's also not forget that log books can be forged. It's not an official document, it's a person's personal record of their hobby. They could have a secondary hobby in creative writing... I guess what I'm saying is, who really cares how many dives the Instructor has? All of the agencies I"m aware of have minimum dive requirements, so as long as that's met, who cares how many dives beyond that the person lays claim to? Look at what really matters. Does the Instructor know all of the required elements of dive knowledge inside and out so he can explain them in detail to his students, rather than reading them straight from a book? If so, who cares if he has 110 dives or 5,000? Is the Instructor absolutely proficient in the water? Does the Instructor make safety the top priority every time he is in the water, with or without students? Does he have the patience to work at each student's pace? Is the Instructor willing to NOT pass a person who is not performing to standards? I could go on and on here, but I have things to do today! The bottom line from my perspective is that we only need to consider the things that really matter when deciding whether or not an Instructor is good, qualified, or whatever. And, personally, I don't think the number of dives they have is one of the things that matters.