Final answer:
Stylish sneakers are considered a luxury item because they are not essential for survival and are purchased for their aesthetic or brand appeal.
Step-by-step explanation:
A pair of stylish sneakers could be considered a luxury item because it is not a necessity. In economics, goods are often categorized into necessities and luxuries.
Necessities are goods that are essential for survival, such as food and shelter, whereas luxuries are goods that are desirable but not essential. Stylish sneakers often fall into the luxury category because they are bought for their aesthetic appeal or brand value rather than just their functional purpose.