Realistic jumping

For ages adult squirrels had taught their young how to jump from bare branch to bare branch by demonstrating how to jump between two broad solid branches close together, and gradually moving to thinner branches and and to longer jumps. One day some adult squirrels, who did not have children of their own, and thus no experience in teaching, thought about the learning process. What, they said, if we change the process? Adult squirrels should not demonstrate the jump, that makes it boring for our young. Instead, young squirrels should use their in-born curiosity to discover themselves how to jump. Every young squirrel can invent how to jump, you don't need show them how. At first, everything went well, so encouraged by their results the squirrels-without-young decided that it was time for the next step: the young could very well decide for themselves between which branches they could jump. Every parent who still taught his own young was told he or she didn't have enough trust in the abilities of his own young. Of course parents were still responsible for the results, and provided jumping areas where the young squirrels could clearly see the branches. Many parents felt that their young jumped less well than their parents, but hardly dared to voice this. Some thought that more young squirrels fell, very unfortunately, but well, accidents had happened always, right? Still, the subject of accidents was taking seriously. The parents-without-young talked about is and concluded that jumping to a clearly visible branch did not prepare the young squirrels well for the life in real forests. So it was time for the next step: realistic jumping. Instead of starting jumping from a bare branch to a brae and clearly visible branch, it was concluded that jumping should be made more realistic: the branches they practiced on should be concealed by leaves, just as branches in real life are. Lets not get intio the details of young squirrels maimed for life by making unsecured jumps for which they were unprepared.