At 5 years old the child should be learning to read. When your nephew is older, maybe 6th to 9th grade, you can offer to help teach programming. If the child is not interested, then the age is not important because the child will not learn what he is not interested in. Here is a link to an article about teaching Basic. http://canrightonsoftwareandprogramming.blogspot.com/2012/04/learning-to-program-with-basic.html[^]