\begin{tabular}{l} What is a key challenge sociologists face when defining \\ social class? \\ \hline Agreeing on a universal definition \\ \hline Classifying people based on age \\ \hline Identifying the richest individuals \\ \hline\end{tabular}

One of the toughest nuts to crack for sociologists when defining social class is the lack of a universal definition. Different cultures and societies have their own frameworks for class structure, making it tricky to create a one-size-fits-all categorization. Factors like income, education, occupation, and even access to social capital can vary widely from one place to another, adding to the complexity. Another challenge lies in how dynamic social classes are! They aren't static; people's circumstances change, which might shift their class standing. For instance, an individual could transition from lower to middle class through education or career advancement, while fluctuations in the economy can alter the overall class landscape. This constant movement makes standardized classifications a real head-scratcher for sociologists!