Some kids apparently think that having no mobile phone is an indicator of poverty. There were campaigners on the radio this morning saying that not being able to afford to buy a present to take to a classmate's party indicates "exclusion".
The best Western World definition of poverty I ever came across was in Robert Caro's biography of Lyndon Johnson. The president was raised in the hill country of Texas in the 1920s. The parents and children at his school embarked on a protracted money-raising campaign and were eventually successful in buying the team a basketball. (He's the teacher in this picture from 1928.)