I am thinking to use wrestling shoes as casual wear. Will it be a good idea considering the fact that I am a girl?

Strange thought indeed! But, not bad at all. You can have a trial for some days by going on a stroll wearing a wrestling shoe. It does not matter whether you are a boy or a girl. It will be best if you visit crowded places wearing this shoe as you can know the opinion of many people. People may like your "wrestling dress shoe". May be, boys will become so much impressed that they might "wrestle" with each other to draw your attention.

But, do not forget one point. The wrestling shoe you are going to wear for everyday use must be of an attractive color. As far as possible, try to match the color of your dress with that of the shoe. If you are unable to find an exactly matching color combination, then go for complimentary colors.