Accepting our failings and really working hard to do better seems to come easier for me with age. Who knows, maybe we do get wiser.
I know that it's much easier for me to define what I will and won't accept, while being able to see more and more gray areas (as opposed to black and white). My ability to understand and accept people with all their flaws and imperfections has only grown in the last few years.
I never thought I would have learned so much in all of this.