Especially if it helps you get a job or move up in your career
It's the misuse and abuse (and a lot of messed up people out there such as rapists and pedophiles and molesters) of sexuality that has made it a taboo. But then it's not really all that much of a taboo, if you consider how much sex is on TV, in movies and in books. Games are toned down on sexuality if you compare them to shows like Drawn Together, Spartacus *cough* and that stupid game where you have to hump every girl you come across on a big ship to score points. Forgot the name of it. Was pretty stupid anyway.
And even if the world was void of the bad and evil and wrong aspects of sexuality and sex, I doubt ANYBODY would want to see their parents getting jiggy with it. But then that's besides the point, I think, because there's a massive difference between sexual appeal and the actual act.
Just to get the thread back on track, I think the issue here with Serah's outfit putting her forth as a sex object that infuriates feminists, is that for the most part women have a different view on dress code than men do. If you dress scantily you are automatically classed as a whore/slut by the female race (because why else would you put out unless you were trying to attract the male race's attention?) and you are automatically seen as a sex object by the male race. I'm generalising but that's because for every one guy that purposely avoids looking at girls in tiny shorts and baby T's, there's another five that drool and 'want', y'know what I mean? If you consider the dynamics of the male and female brain, men are easily turned on through VISUALS (hence this disgusting thing called porn being a hit with guys) whereas women (or most who have a conscience) need a bit more emotional stimulation to get turned on (hence guys flirting and flattering women with compliments to make them FEEL good).
And considering that the majority of women (I should really say teenagers, I guess) nowadays dress like prostitutes, well... you know, if you have to stoop to that level... you see where I'm going with this. Girls demoralise themselves. De-MORAL-ise. They lower their standards. Not because it's 'cool' or 'the trend' but because it's easier to bag a guy or get attention from a guy through visual exposion than having the patience and confidence and self-esteem to let a guy get to know her first before jumping into bed with him and hoping things 'work out'.