None of us are perfect. Do you really need proof of that?
None of us have “never made a mistake” except perhaps those who never attempt unselfish acts which serve others. No sense in providing examples here…they’d only cause grief.
None of us is without blame. Think about it. If nobody is perfect, flawless, or without error, why should we try to become better caregivers? In other words, why should we support others who try to become better caregivers?
…er, because we all can relate.