no Demographics or Interests data in Google Analytics (x-post from r/analytics)

I have a Shopify store with visitors showing in Google Analytics.

My settings:

• in the Shopify admin I have my Google Analytics UA property setup and Enhanced Ecommerce settings turned on.
• In the GA Property settings under Advertising Features I have “Enable Demographics and Interest Reports” turned on.
• In the property under Tracking info > Data collection I have “Advertising Reporting Features” and “Remarketing” turned on.
• In the GA view under E-commerce setup I have “Enable E-commerce” and “Enable Enhanced E-commerce Reporting” both turned on.

But I don’t have any Demographics or Interests data under Reports > Audience. It says: There is no data for this view – https://imgur.com/a/B6VR29P

Why is this? What am I missing?