As wicked warrior said cutting your hair will show to others that you are insecure and a coward. Many shaheed singhs gave their lives for kesh such as bhai Tauru singh we read it in Ardaas everyday the sahibzaade gave their lives for us to keep our kesh and be proud of who we are. The bibia in mir mannus jail gave their babies for us so we can keep our kesh. They are countless shaheeds that have given their lives so that Sikhs now can keep their kesh and be proud of who they are.