Why do people make fun of people?

i mean we are all equal nobody has the right to jugde people but God. i mean people cant help that they have to wear gles orr walk funny or like to read or ugly teeth i mean we are all equal. and you dnt like it when people make fun of you. so post a comment on here if you realy want to change and be better people becuase small steps at a time make a big difference!