No-one is a 'nobody'. Would you yourself like to be called a 'nobody'? So why label someone else in this insulting way? Shame on you! Many people experience great trauma that shuts them off from engaging with others as well as in educational settings... and so they never do reach even half their potential. Indeed, there are wars, famines, family neglect, as many reasons as there are human beings concerning why people don't achieve their potential...