This is unpreventable and does not account for a large percentage of dropouts. Most will attend a Sunday school in their new location. We will never please all of the people all of the time, however, we need to be sure that the needs of the Sunday school family are being met. For example, adults grouped together from ages 18 to 45 is a very poor grouping just as students 14 years to 25 years would not be able to share common problems comfortably. The size of the class is another important factor.
Proper sizes differ with the age level of the students.
Listen to suggestions made and be willing to make changes when they are justified. Most drop-outs, because of dissatisfaction with organizational structure, can be avoided. Poor Teaching is the bane of many Sunday schools. This is preventable and should be dealt with kindly but firmly in every circumstance. However, we need to be sure that everyone has a clear understanding of what poor teaching is.