Girls, What would be the advantage of wearing a half slip under a dress rather than a full one?

When I do wear slips, I wear a half slip under skirts, but a full slip under dresses. I have recently read that some women wear half slips under dresses. I had never heard of that before. Would there be an advantage or disadvantage for me wearing a half slip under dresses?

Girls, What would be the advantage of wearing a half slip under a dress rather than a full one?
Post Opinion