My name is
Rebecca. I went by
Becca until college at which point I started going by
Rebecca as it sounded more mature to me. People who knew me the first 17 years of my life call me
Becca and I find it endearing. A sign of our long relationship. Part of wishes I still went by
Becca to everyone. It seems more care free. I no longer feel the need to have my name represent professionalism, as I don't find that to be as important as I once did. My daughter
Lucille goes by
Lulu. It's a nickname she assigned herself. She'll probably outgrow it someday, but I hope she doesn't. If she is comfortable enough in herself to still go by
Lulu as an adult then I would see that as a sign of confidence and that she still prioritizes fun in her life. The adults I know who go by their childish nicknames are more laid back and care less what others think of them.