It looks like others have had a similar experience to me; not taught very much, if anything, about HOW to be a good buddy until well after their basic training.
Like most others during my OW I wasn't taught the How, just that having a buddy was recommended. It wasn't until a little later when I was deserted on a night dive, I think it was around dives 10-12 that I realized that people just didn't know how to be a buddy. That was the dive also that I realized I could survive on my own and started looking at diving a little differently.
Instead of looking at it like we were each other's lifeguard, in the swimming pool sense, I looked at it as though we were two single-seat airplanes, each with air-to-air refueling capability. The analogy isn't perfect but it conveys the idea.
After that I sought out examples of the How. Along the way I've met some good examples and some, well not so good.
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One thing though: I often hear of divers dissing other divers for being a burden, or using the term Insta-Buddy as a slur. Whatever that is it certainly sounds terrible. Frankly, I don't understand that at all. It smacks of an elitist and selfish mindset that reflects poorly on the person making such comments. Wouldn't it be better to say to yourself: "Self, this person isn't as smooth as me. Maybe, I can help make the planet a better place if I give them a good example and some leadership? At the same time I still can have some fun."
My daddy told me: Don't think too highly of yourself. Through life you are going to meet some people who are smarter, some who are dumber; some who can do it better and some who can do it worse; some who are faster and some who are slower; with the exception of the rare truely evil person they are all people with the same ultimate destination; never forget that.