Not at all outrageous
Steam has rolled out itsFamily Sharing featureto all users today following its beta release. As the name implies, it allows users to share their game libraries with others.
To enable the feature, first set up Steam Guard if you haven’t done so already and go to Steam > Settings > Family. From here, you’re able to authorize your computer and users to share. A maximum of 10 devices can be authorized simultaneously for up to five separate accounts.
Valve has specifics about Family Sharingover here, if you’d like to read up on the literature.