Not a thread about a thread but I keep seeing this mentioned - here and other places.
Does good bone structure mean symmetrical facial features? What are good cheekbones really? I googled and got some bizarre complicated test to check if you had high or low cheekbones 
I think lots of face shapes are very pretty or beautiful, I'm not sure which fall into these categories. Or maybe it's that I get distracted by amazing hair or eyes or a smile or something, so am not looking for 'good bone structure' when I find someone pretty or whatever?
It's a little confusing!
How do you define these things?