Altough it started this way, perfume is not supposed to mask B.O. - perfume is supposed to please our sense of smell, to give our person some individuality, certain "olfactory uniqness",
it is supposed to evoke pleasant feelings for both the person who wears it and who smells it.
A person can be recognized by wearing a certain kind of fragrance.
One can instantly think of a person without seeying her/him by simply smelling just the scent that person wears.
Sure, some pple are not being familiar with "perfume etiquette" - number one of which is, one should remember never ever overdo it, use it in an amount just sufficient for a fragrance to be felt from up close never from afar, and some indeed have poor hygene and yet dose themsleves off with vats of perfume - which is just yucky thing to do..
Also, the perfume or any strongly scented cosmetic like hairspray, body lotion etc should not be worn to places like hospitals, dr's offices or even office meetings, etc because some pple have migraines, allergies which can be affected by strong smells, nice or bad alike.
Fuzzy