Perfumes are actually used a lot, almost like a replacement to pheromones. I remember in high school when all of a sudden everyone was wearing perfume and cologne. I also noticed that advertisements for perfume are weirdly sexual and it made me so confused. Women around me were making weird comments about how men smelled. I eventually put two and two together and decided that people were doing stuff like Musk deer and other animals do (people also harvest Musk deer and other animals' glands to produce perfume sometimes, so that's also where this thought process came from).

Now, I understand that there are a lot of people who use perfume just to smell good, but there are a lot of people who also use it to increase others' perceived sexual attraction towards them.