Why is there no innovation in technical education of elementary school students?

We all know that the level of technology in the various level of education is different from the other. But the sad fact is that, there a lack of innovation in
educational technology for the school-aged children when compared with the high school and higher secondary level.

Do you think that there is no much effort taken by the respective authorities to improve the level of students by introducing new innovations in the school level rather than that in the high school and higher secondary level. Members, please share your views

"What is important is to keep learning, to enjoy challenge, and to tolerate ambiguity. In the end there are no certain answers."