Normal panties and cheekies have the benefit of having colors and forms that emphasize the wideness, roundness, and voluptuousness of the female figure. They conceal the flesh such that another layer of fabric must be remove at the start of a sexual encounter, which causes the anticipation of the male to grow even more before her flesh is revealed while also giving the female more time to become comfortable revealing herself to the male. Plus, the amount of fabric allows them to be used in a sexual capacity, such as wrapping around the penis during lap dances.
Thongs do not emphasize the female figure (in fact, they look strange to me), do not allow the male to build up greater anticipation, do not give the female more time to become comfortable revealing herself, and cannot be used in a sexual capacity to nearly the same degree. In my opinion, thongs are thoroughly unappealing when compared with normal panties and cheekies.
To be honest, I don't know, I guess it's to please me.
Seems like you want girl answers although coming from a guy I think cheekies are way more sexier than thongs. They look sexy and cute as ever and they leave something for the imagination.
One reason is that parents don't want their kids wearing thongs and that's the closest thing too it that they will let you wear. Another reason is since it already feels like a wedgie people who try to give you one can't because you already have a wedgie
i have an ass quite a round delicious one and i agree they are annoying... i suppose if i wanted to get my bf hard id walk around in one in front of him... but they are generally useless for the reasons you said.