Thanks for taking the time to respond to everyone individually. You don't have to do that, but it was nice.Do you have your own criteria for when you would call a dive? I am really curious what that looks like for other divers just as a set of standards, though I'm sure it varies quite a bit based on experience, personal preferences, etc. Thank you again!
To answer your question. The idea of personal minimums comes from aviation. There are legal requirements that a pilot has to take into account for such things as visibility, runway length, and crosswinds over the runway. But pilots, especially private pilots, are encouraged to think about their personal skills and how recently they have practiced these skills and set their own minimums accordingly.
As for me, I mostly dive in vacation spots and don't get seasick so my minimums pretty much align with the operators'. But when diving with my wife or son, I've passed on dives when it was very choppy or visibility was very poor.