My two small children jump off our deck all the time. They are 4 & 8 years old. We will not let them dive in. We have a 54" pool wall which equates to about 51-52" of water. They were provided with a strict set of rules for around the pool and so far have been cautious and courteous when jumping into the pool. Adult supervision is ALWAYS present whenever children are in or around the pool and our pool gate/ladder is placed into the upright position and locked when we are not available to supervise activity.