Show me your bald head

When the first time I saw my sister, she was with my dad and she wearing a red hat. I ask her to take off her hat to show the bald head. Indeed she let me see and take some picture to let my brother see. She is bald and she shaves her own head too. She told me some nuns having shiny heads, dad told us that's because they some of them are really bald. But my dad's side of family nobody is bald.

My sister and dad visit my mom and she is brave enough to show her bald head. I know my mom is not happy she being a nun and she would wants to be one just like her. My mom no chances to see the temple my sister living in as my dad worry that she wants to stay put there with my sister.