White people will fail in their attempts to be good allies, and they need to prepare for this in advance. This is critical to their path of becoming an anti-racist person. Black people are not expecting perfection from white people. We know it is not a question of if they will mess up but when they will mess up. What I have been saying over and over is, when white people mess up, what will they do then? Will they retreat? Will they give up? Will they lash out? Will they push blame onto others? Or will they use this as an opportunity to learn what not to do and commit to doing better?