Why was the Magna Carta considered a failure?

Because Magna Carta attempted to set limits to political power without grounding these limits in the sovereignty of the people, it demonstrated a problem with which philosophers have grappled for even longer than 800 years.

the difference is that white collar worker performs skills like worker as a scientist or well blue collars do physical work and they do services like being a cook.

food and resources were plentiful.

women were encouraged to marry later in life so they could work in factories.