When you experienced a culture bump, you may have a feeling of disconnectedness which is accompanied by a sense of not knowing. It is frequently accompanied by a loss of knowledge of a normal response. Then the person who is in culture bump would like to figure out this discomfort feeling through asking why. Even though it may reinforce the feeling of difference between these two people, the discomfort and disconnection will be resolved.
For example, after I knew Americans would like to drink icy water rather hot water, I felt surprised and strange. Because it was different from my country. Then I wanted to figure out why we