To change or verify this setting and set this option on your Xbox Live account, please follow the steps below:
1. From the Xbox Main main menu, select the Settings menu.
2. In the Settings menu, choose Privacy, then Change Settings, then Customize, then scroll down and select Member Content.
3. The Member Content setting must be set to Everyone in order for you to view, join, or create a Squad.
For more information about Microsoft's Privacy settings, please refer to this Xbox Support article.