The documentation establishes:
Any application or game purchased after July 2, 2016 is eligible to be added to the Family Library. If you purchased the application or game before July 2, 2016, you are eligible for Family Library if the developer has made available past purchases. You can find out if this is the case by touching Read more on the application details page.
I have applications that I bought before this deadline that I would like to share through the Library of my family. Unfortunately, when I visit the Play Store page for these applications, they offer me a
Uninstall button instead of
To buy button.
This leads me to ask:
Can I buy these applications again with my main Google account so I can share them through the Family Library?
If I buy them with a child account linked to the family, will they be shared with the other members of our family?