Personal growth and being emotionally mature?

At what age did you feel emotionally mature? Was there a particular time/experience in your life where you realised that you were behaving in a mature way? I know that people are different and mature at different ages but generally speaking people in their early/mid 20′s are emotionally mature, right? For me, emotionally mature means that someone is capable of dealing with problems effectively, a person who strives for personal growth and knows when to let go and move on. what do you think?