Unsuitable date of birth input

Users affected
P7
Outcome/Expected Functionality
DELAY: Most users are still able to enter the DoB field normally
Type of issue (10 usability heuristics)
Consistency and standards
Ease of fix
Easy
Severity
Cosmetic
USER EMOTION: Observation
FRUSTRATION: Users find that the DoB input of YYYY/MM/DD is not something they normally use. Their common usage is DD/MM/YYYY.
Feature(s) impacted
Registration