Hey Teyon,

Look at this from a distance. Look at the big picture. "Real people" are not Always symmetrical but where are the differences? Mostly on te face.

Secondly, and far more important for free stuff and content creators is that most of the Poser tools NEED symmetry to work as designed.
The setup room, the fitting room, the morph brush, ease of clothing building, a lot depends on symmetry. 

The object files, the rigging, the magnets (if required), the dependencies, everything has to be fully symmetrical.
I have a very- very- detailed report in Mantis about ALL native Poser figures, what is happening, and WHY they are not popular.
99.9% is about them NOT being symmetrical at some point, and what this does to the Poser tools.

The most important thing for any new Poser figure?
The very-very first second the end user opens a new Poser figure, he has to fall in love.
"One does not get a second chance to make a first impression."

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!