I hope you knew that all it would have taken for your friend to die in 4 feet of water, and he understood this clearly, is for him to take a big breath off a tank and stand up without exhaling. Then you'd have a friend or relative with bloody froth coming out of their nose and mouth and as you watch their eyes roll back in their head and the life leave them you can say "sorry dude, wasn't supposed to be such a big deal" then you can explain to their wife, mother, or father why a non pro did this to their loved one.
It's not like you are the people you talk about who are in their 70's and have decades of actual experience behind them that may have been gained at the expense of people they knew doing this. Ask them how many of their buddies got bent or died. You are a new diver that does not have decades of experience. The lack of judgment is emphasized by the only 20 feet deep remark. People have died in much less.
Yes i did know that he could have died in 4 feet of water, i also told him as well. understand that i spend a good part of the week before hand explaining the dangers that scuba diving as i know them to my friend. I told him from the very beginning of him asking me to take him that "HE COULD DIE." but he still insisted after all my explaining. So that was that. those guys in there's 70's dont have any real stories of dive accidents, other then minor mishaps. from what they tell me the've always did scuba on what seemed to be the OW level never really going deeper then 100 ft. and always did a very generic plan that got them up safe always.
I am nowhere as experienced as you, and clearly have no teaching experience however i strive to get better and better as i go along. i know that some of the things i did where illadvised from the start, but again it was all done with the understanding that it was dangerous and that if he did not follow direction properly he was going to probably get hurt.
i did it with the intention to help my friend out, both for him to have fun and be safe.
if would have said no, he would most likely still pursue the idea of trying it out before not wanting to do a discover scuba class. god forbid he would find someone else that just happens to have scuba gear and just lends it to him for a weekend.
so which would you prefer? the direction i went or this alternate one?
Furthermore, you being an instructor your self must have come across MANY certified divers that raise a neon red flag on dive boats in and out of the water when it comes to there lack rudimentary knowledge on how do things properly. its scary sometimes, people that cant control buoyancy, clear mask, cant swim properly with fins, dont do any sort of equipment check and let octo and gauges dangle feet below them. there was a guy on this trip one time that went half the dive swimming face down vertical because he did know know how to properly weight himself.
are you saying that some of these guys are better of because they took a class they clearly didnt get much out of. compare to some one how gets tought by another diver that at least want them to be properly prepared.
would you say the Instructor that gave some of these people there C card had any interest what so ever in there safety when they past them?? those guys probably just get a cluster of students, say "hay this is scuba gear this does this this and this, into the dive well you go." run through skill "yea so what you didn't get it, you probably wont need it."
<--- compared to this, i was feeding my friend ever bit of knowledge i had accumulated on scuba over the last 2 years. literally like if his life depended on it, often saying "that could kill you." we did skills almost the whole dive till he had them down.
i can tell u right now, my friend is not going to learn much from his OW class other then the dive tables, removing equipment and drop weight assents. Its mostly going to be all practice and review.