What is the rationale for recruiting a "type"?

[Cheerio]

Originally Posted by SoCalGirl

Think about how often you meet best friends who look like sisters? Like attracts like and people that hang around each other a ton will start developing similar interests and tastes.

So even if the "Hot Blonde" chapter recruits a "Not Hot Bruenette" she's likely to start eating and working out like her sisters. So maybe she becomes "Hot". If she has lots of bottle blonde sisters she may decide to give it a whirl too. Now she's just another "Hot Blonde" sister.

LOL--within an eight year time frame, two of my brunette cousins joined same NPC group at different (SEC and Big Ten) schools, and they both became bottle blonde sisters. I, too, wonder whether blond-ing is a semi-requirement for collegians of their group.