Straight legs are important, yes they look good.
How would it look if the wearer had crooked legs? Some bow legged shape, and then trying to wear heels? It would be a disaster! So yes, straight legs, up and down, which may not be good for riding a bicycle or a horse, but perfect for heels
This bit of silliness brought to you by Dreamchew, the new gum that is also a hallucinigen!