I think, as diverse a group as we are, we are in danger of assuming the mass public see things in a similar way to us; I think, by definition, this group looks wider and searches for solutions with a broader toolset.
I am constantly amazed at how little planning most people carry out though. I am probably guilty of over-planning (according to the missus anyway); I always produce a list of kit I need even just to go down and work in the wood, and I will usually list the tasks I intend to carry out and, maybe, the order in which I will do them. Maybe this is a kind of compulsive attitude but I also think I am more than capable of solving problems as they occur.
I'm far from a 'prepper' in the current popular context, but the way we live (no mains water, frequent power cuts, no waste drainage, miles from any shop, easily cut off by weather) means that we have to plan for potential scenarios, and that does fall into 'being prepared'. Of course, the most important 'preparation' is having the skill set and the mind set to deal with problems.
So, in answer to GC's question, yes, I think being prepared is mainly a state of mind that being a 'prepper' has probably taken to an extreme (maybe, even, an unhealthy extreme in some cases - life's about living, not constantly prepping for the unlikely).
My Scoutmaster ( RIP ) was a brilliant man , something I probably only appreciate more now than then.. He would leave the planning of any camping activities to the Scouts themselves - we would have to present a list of things we needed to draw from the store and actively think ahead and plan what we would need. Food , Water , Shelter , Cooking equipment. A check list for each scout to bring with them from home.
A great mental exercise for young minds in accountability and self reliant action / thinking .
I guess the common and rather obvious trending word amongst most answers and examples is simply - Self Reliance.
The mindset that if I/We don't make plans or actions there shouldn't be an expectation that others will rush to assist ( Be that friends ,family, Neighbours , Government )