I have family sharing enabled and I had already paid for Minecraft purchase. According to Apple's family plan I should be able to share the purchase on 6 devices, however, my son isn't able to download the app for free. App store is asking him to purchase again.
If you don't see your family's shared content - http://support.apple.com/HT201454
- Feb 2018 King Penguin post https://discussions.apple.com/thread/8288103?answerId=33047003022#33047003022 - "She shouldn't be going into the main part of the store, she needs to go to the Purchased section (e.g. tapping on her icon/id at the top of the App Store app) and then selecting your id to redownload your purchased apps "
-Also: http://apple.stackexchange.com/a/146077 - quit iTunes Store and App Store apps and start again. - more information http://www.howtogeek.com/212823/share-apps-music-and-videos-with-apple-family-sh aring-on-iphone-ipad/
Unable to download apps with family sharing
