How to remove Year from Date of Birth entries?
 

Okay.. so, on the register page, and on the Edit Details, there are 3 main parts where you can choose your date of birth and how you want to show it.

On register; how can you make it so the person can only enter the Month and Day without Year?
On Edit your Details; How can you make it so they can only enter the Month and Day without Year?
On Edit Your Details #2; How can you make it so they can show Everything Display Age and Full Date of Birth (like remove that one option)?