For camping or in situations where you are unable to use the regular toilet, you can still do your business somewhat normally if you have a portable camp toilet. This can be set up pretty much anywhere and you and your family have a place to go. Having a roll of toilet paper on you is a bit more civilized than using leaves. With a roll of tissue, you will also have something to clean up spills or to blow your nose.
Keeping clean in the outdoors is important to one's well being. When you are clean, you feel better.