A recent research suggests that preference of chin structure is not universal as previously thought.

The scientists noted significant differences in chin structure between various geographical regions and also among those belonging to the same region.
Researchers report that the differences were significant enough to question the facial attractiveness theory and suggest that chin preference is neither universal nor does it have an evolutionary impact.
The authors conclude that the reports of psychologists about universal facial attractiveness and these results need to be reconciled to make a conclusion.
Source-Medindia