Sharing MLS Season Pass

Refer to --> Add a family member to your subscriptions from Apple - Apple Support

"When Purchase Sharing is turned off, family members can share subscriptions, but they can't share individual purchases like apps or books."

To the contrary. I interpret what it says to mean if you turn off purchase sharing then the subscription will be shared but not individual items such as music, books, etc. Isn't that what you want to do?

You cannot select individuals with whom to share.