Actually, she dresses very conservatively compared to most so not sure where you received that impression. Have you actually watched any of her shows? Somehow I doubt it as it seems that this type of information is spread by those that abhor all in Hollywood (and with some understanding)..
Google or altavista “taylor swift dresses like a whore” and you will find genuine pictures of her that you would not want your daughter to emulate. Particularly some of the concert images.
I’m not saying she always does. But how many times does she have to in order for it to be true? She is sexualized and she’s old enough to be conscious and making the decision on her own. She’s doing it on purpose for image and making money, and that’s why it is totally fair to call a spade a spade.