I don't wear them because they are super uncomfortable. Personally I don't think they look sexy anyway. I guess the only advantage would be that it's pretty much the only type of underwear that will not leave visible panty lines under some dresses/trousers... but in that case, I'd much rather go commando ;)
well i prefer not to wear anything, but when I have to wear them I wear g strings or thongs to hide panty lines. They're not the most comfortable but you get used to them, you hardly realize they're there after awhile...
I prefer gstrings or things... No panty lines. When I was a kid I thought my mom was crazy for only wearing them but once I got to high school I started wearing them and never looked back. Only exception is I like boyshorts too
To impress men of course, as women are looked at as sexual objects... but I myself actually like thongs and g strings. I hate wearing full coverage. Also of the upsides are no pantylines and added femininity.