An interesting conversation between me and a girl

I visited Lucas in the kindergarten one day, other kids came to me and asked me to stay with them.
One beautiful 3-year-old girl sit next to me. She touched my hair when we were listening a story from a teacher.

'Your hair is very looooong and curly!' she said.

I thought it was a compliment, so I replied, 'your hair is also beautiful'.

However, she looked at me with a blank expression, then said, 'so why don't you tie up your hair?'
Well.... she thought my hair was messy....

I tried to hide my shocking look, then I responded, 'Oh... that is a good idea, but I don't have a rubber band, I have no money to buy one....'

The girl looked at me with the same blank face, then both of us turned our head back to the teacher.