Can I have multiple accounts on an xbox that share games?

I'm correct in assuming that there is only one Xbox One between your two kids (they both use one Xbox One)?

If the games are digital, make sure the account that owns the games has the
Xbox set as the Home Xbox.

If the games are on a disc your daughter should be able to play them with out any issues.

You need to set whoever owns the game account as home on that system.

1. Press the Xbox button to open the guide.
2. Select System > Settings > Personalization, and then select My home Xbox.
3. Do either of the following:
   • Select Make this my home Xbox to designate the console as your home Xbox.

Hello!

Thanks for reaching out to us here on the forums with this situation. Is the game on a disc or is it a digital download? If it is digital the account that owns the game would have to be made home console where you're daughter is having trouble accessing
the content. Take a look at this helpful support article:
How to designate an Xbox One console as your home Xbox. Let us know with a reply how it goes.

The account that owns the games would need to set the console as their Home console. this will allow any other profiles on the console to access the games. https://support.xbox.com/en-US/games/game-setup/my-home-xbox

the thing I brought up was, 'an account only can share with one other xbox, but if you had multiple different accounts game sharing on one console, you should be able to play any of the games from any of the accounts'

This is correct. Multiple accounts can set 1 console as their Home, but each account can only set 1 console as their Home.