This is very basic / fundamental oriented question.
Fact: "There's a minimum of three zones within a single region" Fact: "Not every region has support for availability zones."
How can a region that has no support for availability zones have a minimum of 3 zone? It doesn't make any logical sense so I guess I am misreading here. So can someone clarify exactly what am I missing?
I think you are confusing a region and an availability zone-enabled region. A region can have a single zone. Regions with three or more zones are an availability zone-enabled region.