Setting Up Gaming for Children in our Waiting Room

Unfortunately, Apple Arcade cannot be shared across devices in a business setting based on the terms of use.

For an MDM, you can purchase Apple Business Essentials starting at $2.99/device/month, Jamf starting at $4/device/month, Kandji starting at $4/device/month, Mosyle starting at $1/device/month, plus many more who don't have easy to access pricing. I have personally used all 4 of these, plus a few more. They're well worth the cost.

The most expensive is Jamf Pro for Mobile at $5.75/device/month. With 20 locations averaging 4 iPads, you're looking at less than $6k/year. There are likely additional costs if you're using an MSP, but if you have in-house IT, there shouldn't be.

Definitely connect with the business team at an Apple Store or head to https://www.apple.com/business to learn more about how Apple can support you.

You can subscribe to Apple Arcade on one Apple account and share it with up to 5 other Apple accounts each of which can have up to 10 devices associated with it for a total of 60 devices over Family Sharing.

Not sure whether comercial use like this is allowed in the terms of service of Apple Arcade though.

click here ➜ Family Sharing - Apple

You would probably want an MDM (Mobile Device Management) platform to manage the devices. You can ask your internal IT or search for a local MSP that manages Apple devices for assistance.