Setting up Family View options:
We encourage you to create a Steam account with your child. If you and your kids find Steam to be a bit too overwhelming when parents aren’t around to help, you can now manage access to content and features using Family View. You may also choose to enable Family View on your own Steam account if you would rather they share your own Steam Account for the time being.
To enable Family View:
Log into the Steam account your child will use.
Click the Steam menu in the top menu bar.
Open the Settings option.
Go to the "Family" tab on the left side of the window that opens.
Click “Family View” to start the Family View wizard.
Step through the wizard to select the content and features you’d like to be accessible while in PIN-protected Family View.
Select and confirm your new PIN.