The case of the analysis of a five-year-old boy provoked outrage among some doctors and teachers of the time, as a small child was told about what it was usually customary not to talk about. Some of them believed that "similar experiments" are dangerous for children. Others indignantly stated that for such a frank "sexual enlightenment" of a young child, it is necessary to sue the one who decided to do so. Z. Freud did not engage in polemics against opponents of child psychoanalysis. Only a few years later, in his works, he reported that a child who nearly 20 years ago ventured to carry out this experiment, "has turned over in the past time into a healthy and successful young man who, despite the subsequent severe trauma of treatment, resigned through pubertal period. "
Freud did a great job. An analysis of the case of "little Hans" served as an impetus to the subsequent psychoanalytic observations of children and the development of child psychoanalysis.