It varies. There are comics that deal with adult issues and are intended for mature readers. However, there are also plenty of comics that are enjoyable for people of all ages, like those with simple and fun stories.
One great source for free audio stories for adults is Librivox. It has a vast collection of public domain audiobooks read by volunteers. Another option is Podcasts. There are many podcasts that offer fictional stories for adults, like 'The Truth' which features engaging and well - told short stories. Also, Audible sometimes offers free audiobooks for trial, which can include some great adult - oriented stories.
For free audio stories for adults, NPR (National Public Radio) has some excellent podcasts with narrative - driven content. Their shows often cover a wide range of topics from current events to cultural stories. Another great resource is Spotify. There are many independent creators on Spotify who share their own audio stories for free. Also, don't forget about Project Gutenberg. You can download e - books from there and then use a text - to - speech app to turn them into audio stories.
No. Free categorized stories can cover a wide variety of genres and themes that are suitable for all ages. For example, there are free categorized adventure stories which are great for kids and young adults. There are also free categorized mystery or fantasy stories that appeal to a broad range of readers.