Chinese New Year

Our Chinese New Year has lots of guards.
During the Chinese New Year, we all
cannot wash our hair for the first day of Chinese New Year.

We felt so weird, why we can't wash our hair for that day?!
But usually my sister and I also forget this things,
my mother will scold or angry us.

This rules of my family is follow to the
Ad populum Appeal to Tradition.
We really don't understand what it means.
For the following year, my sister and I
also remember to don't wash hair at the first day of Chinese New Year. .