[rejschaap]

Still, you start with the basics, too many people are scared away from React because when someone asks a basic question about React, the answer typically goes something like this "oh, you better use Redux/Immutablejs/Redux-Saga/Babel/Webpack/etc". Usually without even addressing the actual problem.

In this particular case it would be totally OK if the answer included Redux. Because, like you said, it is relevant. But it should go something like "Pass event handlers from parent to child component. If you find a lot of components are merely passing through a lot of data and event handlers to child components without using it you should have a look at Redux".

You should have a look at acemarke's response and neurostimulants follow-up, together they answered this question perfectly.