The following 12 min clip from abcNEWS.com (USA) via YouTube explains important safety concerns about window blind cords within the reach of young children.
Anyone paying close attention to this clip might be horrified by some of the scenes and descriptions. Sometimes the clearest warnings come from those who have been affected by misfortune, mis-management, bad design, or whatever the cause of a disaster is ultimately deemed to be.
Fortunately many accidents involving curtain or blind cords are preventable by product selection or adaptation.
More information about this is available from www.makeitsafe.org.uk.