(1) In marketing, a seller must understand the ways that consumers in different countries think about and use certain products before planning a marketing program. There are often surprises. For example, the average French man uses almost twice as many cosmetics and grooming devices as his wife. The Germans and the French eat more packaged branded spaghetti than Italians do. Some 49 percent of Chinese eat on the way to work. Most American women let down their hair and take off their makeup at bedtime, whereas 15 percent of Chinese women style their hair at bedtime and 11 percent put on makeup.
What is one important idea about marketing in Paragraph (1)?