[yabatopia]

Thanks to the customer unfriendly terms and conditions, a family plan is not always an option, even if a family subscription is available in your country. In my case, I have cell phone plan with a Spotify Premium subscription included, and because of that, I can't get or upgrade to a family plan.

So it may be true that Spotify has a family plan, it's not available to all their subscribers. The situation is a bit similar to Google Hosted Domains customers who can't get a Google Play Music Family Plan: unnecessary complicated terms and conditions and exclusions.