For the most part, the length of the curtain depends on the owner and style. Owners sometimes go with the cafe or crop the curtains for smaller bathrooms. That doesn’t mean that there can’t be long curtains that touch the floor. Longer curtains open up the space, giving the impression that it’s bigger than it seems. Extending the curtains to the bottom also provides more privacy without losing the style. Hence, long curtains work great for a guest bathroom that’s low on space.