Creating the interest and habit of reading among children and adolescents is an indispensable task in emotional and intellectual formation, which, therefore, should be permanent in parents or family in general, in school and cultural centers; also in media such as TV. For this it is necessary that the family (parents, siblings), teachers and cultural promoters have the habit of reading and can be updated.
Myths and legends are very rich material; there are specialized books that make selections and appropriate versions for children. If parents and educators are good readers of these original stories, they could make their own oral versions and tell them to the younger ones.
The first story you present is the one I appreciate the most; in reality it is not a legend, but a Nahuatl myth, very beautiful and with deep meanings. The history of the Trojan horse and that of Robin Hood are well known, and have an indisputable value. The story of the fisherman and the goddess did not know it; it is also a very beautiful story.
Now, all these and others require parents, above all, with some training, which allows for broad and proper guidance in their work of interpreting the stories for children.
Thank you for your gratifying post, @luces. Greetings.r