Hello Josie.
Thank you for contacting AVG Community Support.
We understand situation.
You can invite up to 5 people to join your AVG family. Subscriptions that are shared using Family Sharing can be activated on a maximum of 30 devices simultaneously. This applies regardless of the number of family members in your AVG family.
To know more about the family sharing please refer to this link 
https://support.avg.com/SupportArticleView?l=en&urlname=use-avg-family-sharing#:~:text=You%20can%20invite%20up%20to,members%20in%20your%20AVG%20family.)
Thakn you.
Hello Josie.
Thank you for contacting AVG Community Support.
We understand situation.
You can invite up to 5 people to join your AVG family. Subscriptions that are shared using Family Sharing can be activated on a maximum of 30 devices simultaneously. This applies regardless of the number of family members in your AVG family.
To know more about the family sharing please refer to this link https://support.avg.com/SupportArticleView?l=en&urlname=use-avg-family-sharing#:~:text=You%20can%20invite%20up%20to,members%20in%20your%20AVG%20family.)
Thakn you.
i have a 5 family members option in my subscription. is this one link per device or is it one link per family member? Can that member use their link on multiple devices or just one?