iCloud storage - 200Gb = $2.99 sharable per month

2Tb = $9.99 sharable per month

https://www.apple.com/family-sharing/

Sharing purchases - https://support.apple.com/en-us/HT201085

Hide purchases - https://support.apple.com/en-us/HT201322

Apple One - https://www.apple.com/apple-one/?cid=svc-us-kwgo-brand

How do I share my Apple photo library with family?Use Shared Albums on your iPhone, iPad, and iPod touch

1. Go to the Albums tab and tap the Add button .

2. Tap New Shared Album.

3. Give the shared album a name, then tap Next.

4. Choose people to invite from your contacts, or type an email address or iMessage phone number.

5. Tap Create.
   

How to share albums in Photos on your iPhone, iPad, and Mac

https://support.apple.com/en-us/HT202786

Apple Introduces iCloud Shared Photo Library and New Family Sharing Setup Features

https://apple.co/3Pctjwm

Apple Arcade - Play Across All Your Devices

https://apple.co/3aviTJo