Cloning

I do not agree that there will be a cloning because when someone is going to recognise each other! If suddenly there will be two Joanne i will felt how will i solve this case or i have a twin sister? But i don't have a twin sister! I will felt shock and like very not easy!If there will be a twin like me i will be confused! i don't like twin because it will be very differcult to recognise each other. We cannot recognise who is the elder ?