Avril Lavigne and her dress sense - I'm baffled

The fashion car crash that is Avril Lavigne is meant to be producing a collection of nail wraps with Sally Hansen. This is boring enough news but what shocked me was that Avril - is now 27. What I find more interesting then the useless information that she is releasing a new product is this - she is still dressing like a 15 year old punk hooker at the age of 27.
I gave up dressing like a goth/hippie when I was 17 and I felt I was getting a little old for it. So I packed away all the metal albums, the velvet maxi skirts and retired my new rock boots to the wardrobe - where they are still gathering dust - and I learned to start dressing like I do now. I look back fondly on all the stupid stuff I wore at that age but no way would I wear it now - outside of fancy dress nights.
I know that Avril's target audience is the teenage tramps market but seriously, how has she not seen at least one photo in the past year and thought it might to stop. Harsh - but I believe it to be true...