The podcasts narrates the chapters thoroughly, so parents don't have to, saving 30 minutes to 2 hours of parents, per chapter. Besides, children can play it repeatedly - while taking a walk or before going to bed or while plain preparing!
Every key line of the chapter is read out (none missed), including the Olympiad bytes, so parents and children can depend on this, completely!
Besides, the format of podcast, avoids adding to kids' screen time and helps improve listening and grasping ability of children. So a win win.