there are five stages of economic growth and development, mass consumption is the last stage in which income of citizen of the country is rising at a high level, in this final stage major portion on population is earning enough money and shift their consumption pattern from basic needs like clothing food to other luxury goods. People prefer a high style of living so the industry of durable and luxurious commodities expand. People mostly working in the service sector instead of the agriculture and industrial sectors.
Well, I believe it to be true. As dirt roads, when they are wet tend to be harder to traverse. It largely depends on the context of the question, however