When children move themselves from point "A" to point "B" for the first time in their lives, they have accomplished one of the major objectives in life. In a physical sense, they are free for the first time and can (within certain limits) go where they wish to go without dependence on other human beings. They begin to do so by lying face down and using their arms and legs to push themselves forward. Crawling is movement for movement's sake.
When a child has learned to move by crawling, he or she has earned a Crawling Victory.