Valve announced a replacement feature for both Family Sharing and Family View. Currently in beta.
Features:
- up to 5 members
- game sharing
- parental controls
- allow access to appropriate games
- restrict access to the Steam Store, Community or Friends Chat
- set playtime limits (hourly/daily)
- view playtime reports
- approve or deny requests from child accounts for additional playtime or feature access (temporary or permanent)
- recover a child’s account if they lost their password
- child purchase requests
The problem is that without that rule, you can just buy a game, go offline and play the entire game, then return it. You could essentially play any game you wanted to for free
That already happens; I’ve got a few thousand games on Steam so I’m not taking the piss when I want to refund a faulty game. My total is probably five or ten refunds in the life of my account (almost 20 years).