Personality can change over time and sometimes without wanting it to change. Sometimes changes that occur with age sometimes cause people to become more irritable although sometimes age changes make people lose their judgment, particularly in social situations. These are relatively rare. People make adjustments to their personality as environments change or they develop a different perspective. I have found that I am much more impressed by the people I knew in high school as adults than when I knew them then; let's face it, adolescents like to have fun, but they become responsible adults. Many children who look like they rejected their parents ideas are found to hold similar ideas by thirty years of age.