I completely understand the points everyone has made, but, it seems it is still an issue to take note of from a societal viewpoint, since, at one end of the spectrum we are seeing more and more kids living at home longer than ever before–even after college–and, at the other end of the spectrum–fewer and fewer people being able to retire comfortably. IMO, both of these scenarios represent “wealth gap issues,” so it may be effecting more people than we even realize.

In addition, although, technically not defined as the “wealth gap,” but still illustrative of the point–I’ve known people who, in their 30’s and 40’s seemed to have their financial lives all figured out, then, when unexpected things happened at 50+ (job loss, illness, etc.)–generally because they weren’t prepared–their financial status changed immensely, creating a huge “gap” in their wealth.
Because this data doesn’t show up as a statistic, it might be called the “silent wealth gap,” and is happening more than we might care to imagine.