This thread seems to have drifted in subject matter, so I will make my reply 2 part.
1.) If anybody wants to shop they should go to North Conway, there is every shop you can think of there, no need to build shops at Bretton Woods.
2.) For a family friendly hike in the Bretton Woods area, I would suggest the Sugarloafs off of Zealand Road. You drive in just past the Sugarloaf Campgrounds. There is a parking area just before you cross the bridge over the Zealand River, about 2 miles in. On the other side of the bridge the trail starts along the river, then branches left up to the Sugarloafs. At the col between summits one can go right or left for a short climb to North or Middle Sugarloaf. The climbs are not particularly strenuous and both summits can be climbed in a 3.4 mile loop. The views from either summit on a clear day give magnificent views of the Presidentials and surrounding mountains. A short hike with great rewards for little effort. For more try this: