No one enjoys being constipated. You feel solid, heavy, and uncomfortable, and even if you are able to go, it never quite feels like you finish. Over-the-counter laxatives can help with this problem, but sometimes their effects are just too strong, or people abuse them and cause other problems, such as renal failure. 
Constipation is a frequent problem among older folks but constipation itself is not a normal part of aging. Instead, however, elderly people are more apt to experience conditions, such as medication protocols or decreased mobility, which increase the incidence of constipation.