You can specify epoxy flooring to include skid-resistant additives to the topcoat to make it very safe and slip-resistant, even when wet. For example, a garage floor that experiences water from wet cars and melting snow or hosts auto repair with oils and chemicals should require a non-slip epoxy flooring additive or a texture like flakes. If slip resistance is not a concern for your flooring, the smoother the surface, the easier it will be to clean and have traction, similar to a basketball court.