Honestly, this is 100% the solution for this problem, especially for sharing with a child.

Now, the issue of having a “license” and rights to play a game, vs actually owning the game is still a valid point of contention.

The reasoning I moved from Windows to Linux was this right here.

If I’m going to be fighting with Windows anyway, because of the registry giving me issues, then the drawback of “but Linux hard! You have to configure things!” was moot.