I can tell you in a simple way how! I'm a little. I enjoy it and it hurts no one or myself. Because others around me can't understand why I am me and this way does not make it bad or wrong. It does not hurt things I need to do as an adult as well. If your hurt or being hurt cause of it, then you can't justify it.
So enjoy being a little! Love yourself and be you! stay safe and have fun with it! when you figure out in the end what brings you peace and happiness you will have no need to justify anything to anyone or yourself!
I'm a 24/7 ab and love me for me and the people around me that care do as well!