Why did Britain interfere with colonial government in the mid-1700s?
To pay for the French and Indian War.
The crown incurred a staggering debt to prevail against France in the Seven Years' War (1754 1763). This was fought on several continents, and the American theater of operations was known as the French and Indian War. To recoup Britain's debt, the crown taxed American colonists at a very high rate and kept creating new taxes over the next decade. From the king's point of view, it was very reasonable to charge colonists for their on ongoing military protection. From the colonists' point of view, if they had had a vote in this, they would certainly have voted against it.