So you would prefer to certify them in 25' of water and for there first non instructed dive jump on a boat that usually dives 60 to 80 ft in Jupiter/WPB. I couldn't sleep at night knowing I certified divers that I knew weren't ready to dive. By dives 3 & 4 you need to get them ready for real world dives. I've worked on dive boats where divers are shocked that the normal dives are 60 ft or deeper. Come on guys train them.
Oh, brother. So a Midwest-trained diver, having dove in doubled-up 7mm wetsuits/hoods & gloves/10%+ of their own body weight in lead, and under more adverse natural conditions than a tropical trained diver, is not "trained", eh? And, we must all be diving/training in a "fantasy" not "real" world? Shall I bring up the occasions I've witnessed of "trained" divers with only tropical experience, attempting to dive in temperate waters, with multiple thermoclines? That training tends to quickly unravel...
The point is, it's all about comfort level. It's not about rushing them to x depth, because that's either "real" diving, or it's "just the way we've always done it". Many may indeed be ready for it, but what of those that aren't? I'm well aware that 60' is permitted within standards, under ideal conditions, on day 2 of open water training. But, so is anything deeper than 15'. So... what's the rush? I train comfortable divers... the depth will come, as their personal comfort level increases with experience. They know enough, that jumping on some boat that dives to...80' is not only beyond what's recommended for their novice status, but is ill-advised. But, people drive over the speed limit too, right?