I have a friend whose family decided to do section hike on the Pacific Crest Trail. There were 14 of them ranging from his 72-year-old dad to his 9-year-old daughter. The plan was to take 7 days, hiking each day from early morning until the afternoon then sitting around, relaxing and enjoying each other's company for the rest of the day. They overestimated what they could easily do in a day and the whole thing turned into a forced march, reminiscent of his marine corps days, with everyone too tired to do anything but hike, eat, sleep. Nobody enjoyed it.
The moral of the story: slow down, smell the wildflowers and make enjoyment the goal rather than a goal of accomplishing some specific distance.