No. Because it’s a contract between you and Steam. These digital contracts haven’t been around for long enough for society to figure out inheritance standards yet, so the companies have all the power to just force your family to repurchase.
Nothing is stopping you from just handing your login credentials to your family. If they can’t figure it out then they were not worthy of your library.
Steam :: Introducing Steam Families (steamcommunity.com) angielski
Valve announced a replacement feature for both Family Sharing and Family View. Currently in beta....