Lots of people buy things that they don’t really need but want. Don’t get me wrong, sometimes you should buy things you want, it’s naturally what humans do (like toys), just don't overly buy new things that you don’t need. An example of that is when you have a younger sibling but you or your family buys lots of new clothes for your younger sibling but you still have (and should save) your good well kept and in great condition clothes when you were his/her age and size but you keep buying new clothes for your younger sibling. Another example is when your an adult but keep buying new clothes and your closet keeps getting full because your old clothes are fine and still fit you.