What does the son demonstrate when he questions his mother's assumption about his dinner preferences?

The son demonstrates radicalism by questioning his mother's assumption about his dinner preferences. This indicates a challenge to traditional ideas or established norms, suggesting that he is rejecting the notion that he must conform to expected choices based solely on someone's preconceived notions about him. By doing so, he expresses individuality and a desire for autonomy in making his own decisions.

In a broader context, radicalism often involves questioning societal norms and advocating for change or new perspectives. In this case, the son is not just accepting what is presented to him based on assumptions; he is actively engaging in a dialogue that reflects a more progressive or independent way of thinking about personal preferences and choices.