I think it will depend on the next generation of podcast listeners. As it stands there are a handful of podcasts for kids and 10’s of thousands of podcasts for business. The next gen will be more likely to listen to podcasts if they start now.
Podcast Playground is the first podcast network for kids, with hosts who are kids. If listening to podcasts becomes a habit, then as they grow up they will easily transition to other podcasts aimed at their new interests. I wrote an article about the origin story if you are interested. https://medium.com/p/podcast-playground-the-first-podcast-network-for-kids-465747139698
But if kids start listening to podcasts early on, I think it will help the podcast market to blow up in 10 years.