Final answer:
National affluence generally leads to increased leisure time and spending on recreational activities, including outdoor and indoor sports, travel, and cultural events. Therefore, a decline in attendance at outdoor recreation areas is most likely NOT a result of national affluence.
Step-by-step explanation:
The question asks which of the following is NOT a result of national affluence: a decline in attendance at outdoor recreation areas, an increase in overseas pleasure travel, a significant increase in spending for recreation, growth of families with television and other media, or increased attendance at cultural events. National affluence often leads to more leisure time and greater spending on recreational activities. History tells us that in times of affluence, outdoor and indoor recreational activities, travel for pleasure, and consumption of media tend to increase. For example, during periods of prosperity, such as the mid-20th century in the United States, there was a large increase in the number of Americans participating in sports, such as bowling and golf, attendance at major sporting events, and the viewership of professional sports on TV. Moreover, reading and the circulation of books and magazines also saw a substantial increase during these times. Therefore, the option that would most likely NOT be a result of national affluence is a decline in attendance at outdoor recreation areas.