The main purpose of the creation of New England colonies is "Religious Freedom"
According to historical records, it is Religious Freedom that led the group of people from England to move to America or new England to form new Anglican religious practices. This group of people was known as Puritans.
Similarly, another group of people from England moved to American colonies as a result of the intention of practicing their religious belief to satisfaction by forming what was then known as Pilgrims. Their belief is against Anglican practices.
1.the colonies were afraid of losing their own autonomy. 2.The British also dropped the plan because they wanted to make the management of the colonies simple. 3.It failed because every colony had their own agenda.