The house line is a useful way of managing and safely controlling your dog without using force or direct physical contact/attention.  It is a method of training and should not be used solely as a long term solution to a behaviour problem. The houseline reduces the need to invade your dog’s space, grab or push them around which can be quite threatening. It also reduces conflict (e.g. for any resource guarding issues) and for dogs that seek attention it provides you with a means of controlling them without making any physical or eye contact.