If you feel awkward wearing something around your grandfather, you should probably cover your tits and ass
Do you expect other women to cover up just like wearing burqas?
Yes, my body is not for the whole world to see. Women should respect themselves more, they are so easy to sleep with.
While it is understandable that some people would want to wear something conservative, women have the right to wear what they want and however they want to do so. Not making people freely able to wear what they want is a form of oppression, and I do not think you really want to oppress people. Why not try to be more creative yourself and wear something out of the ordinary once in a while?