The reality is at one point in our lives; we have told each other a lie.
The hardening acceptance is; lies hurt people. And the sad truth is trying to bounce back for knowing a liar could not of possibly; meant for you good intentions.
So, why do we lie. Each situation and scenario has to run its own course. In our human nature's is what is exposed are shared to each other.
Is a lie healthy? Well, it depends on your beliefs, morals and values. According to the situation you possess the freewill to make of that independent decision.
Does lies affect family bloodlines; anytime the truth is harbored. Eventually it hurts, heals are destroys relationships.
What about friendships; some people work their relationships out. Some people severance all ties.
If we work on ourselves we can either choose to be truthful are lie to each other. About anything. That will eventually expose itself.
Do we live in a world of liars; every human life experience dealing with people in circumstances are situations. If not Cohabitations is a lesson learned. We just experience life with either the same are different types of people on a different day. If not dealing with the truth of the lies we hide behind in ourselves.