Everyone sees something different. If one day they say: this should not be allowed. Then one day someone will show it to them and Make them see it from a different perspective. They see it and say: maybe we should find another way other then prohibition.
Answer:
Increase in consumer spending.
Explanation:
The adults in the '50s had grown up in conditions of economic deprivation, due to the general poverty of the Great Depression and then due to the rationing of consumer goods during World War 2.
The correct answer is "they are very profitable for owners, but usually result in dissatisfied producers and consumers.
The reason for this is because a monopoly controls all commerce in that particular market. When a monopoly has control, it can decide what prices to sell its goods, and often leaves buyers/consumers dissatisfied.