Is it possible to wear this dress casually?

Of course! You can wear anything you want! :) Add a belt at the high waist, either a scarf or fashion jewelry, flats or sandals, some chunky bracelets, possibly a hat, natural makeup, and straight hair with a low ponytail or a braid that goes to the side. Yes this is a lot of things, but just trying to make as many options as possible! :) Work it girl!!!