We're excited to announce that we've fully migrated the Xbox Forums to their new home, here on the Microsoft Community forums!
As of today, going to forums.xbox.com will redirect you here to the Xbox area of the Community forums. We've moved all of your existing threads over so you can continue and start conversations with the new forums experience.
We sincerely appreciate the feedback you have provided over this transition and can't wait for you to check out the new Xbox Forums!
If he goes to your Xbox One and sets it as home, then buys something, everyone on that console will be able to use what he bought. If he gets another one, then he must make sure not to set that one as home or you will lose that privilege, but that means
he will have to make sure he is the only one using his X1 as nobody else will get privileges from his account.