The last thing that I have to mention is the lack of many instructors to get their students to get to know each other. I've seen instructors take the group out as a whole, descend, surface in fifteen minutes, swim back to the shore, and dive over. I have to ask what experience they got from that. To make matters worse, the instructor is often away doing other things during the surface intervals (on the phone, on the internet, hanging out with their friends) rather than interacting with their students and making sure that no one is feeling alone and left out. There are divers that dive alone, but for the most part, divers want to talk about their experiences, share them with others, and be part of a community. I can't emphasize enough how setting up equipment, briefings, finishing two open water dives, and logging dives should take the entire day. To that point, I've seen divers with the look like "no one came to my birthday party," sitting alone by themselves, waiting for the torture of this experience to finally be over.
Learning to scuba dive used to take months. It was an arduous journey of trails and exhaustion. Much of the standards have been cut short or all but thrown out. Ask any diver that learned fifty years ago and they tell you stories that mimicked "military-style boot camp." I say all this with trepidation, but I care. I care about my students, I care about their safety, and most of all, I want them to continuing loving this sports their entire life. With drop out rates statistically reaching 80%, learning to scuba dive is not a great financial commitment but it's an emotional one. Please devote a year to decide if you like it. Let your skills develop and dive a lot. Try to dive one weekend a month. While that's only half of what I really want you to do, I will feel better knowing you have been practicing those important skills I taught you and your hours in the water has turned into days in the water (or better).
Safe diving my friends.