Explain the purpose of the Proclamation of 1763. Was the proclamation effective?
The major purpose of the Proclamation of 1763 was to maintain good relations between the British and the Native Americans. We can also speculate that a secondary purpose was to exert British control over the colonists. Neither purpose was achieved to any great degree.
At this time, the British still had some need for good relations with the Native Americans in the backwoods areas. The British still made a good amount of money from the fur trade. This was conducted mostly through trading with Native Americans. The British worried that having colonists pushing into the Indian lands beyond the Appalachians would upset the relations with the Native Americans.
At the same time, we can speculate that the British wanted to assert more control over the actions of the colonists. They had left the colonists alone to a great degree for quite some time and were coming to feel that they needed to control them more closely.
Neither of these purposes was achieved. The colonists were already beyond the Appalachians and there was no practical way to force them to move back or to prevent further settlers from entering the area. The Proclamation did not lead to greater control. In fact, it was the first of the line of laws that led the colonists to push for independence. The laws antagonized the colonists and led to a complete loss of control over them.