Maybe she sees life in a different angle?
Some people like attention, some like popularity, some wants to be
successful & attractive, while some, like her, only focus on
what she wants in life.
I have friends who do one thing at a phase... School days they ONLY
study, no guys, no make up, nothing. And now in their twenties,
they became so beautiful!!!
I am ok with plain jane look but as for the oily hair thingy, a
little er xin though... 
