Yeah, I still call my father "Daddy." What's it to you. It's his name and has been as long as I can remember. I don't plan to call him anything else. I couldn't believe when my oldest brother went away to college and came back home calling him "Dad." What a betrayal. How shallow could he be? I'm just crazy that way.
Daddy dedicated his life to us, his family, and he's still busily engaged in making life better for everyone around him--even at 81. I love him forever and always. Happy Father's Day, Daddy.