My friend says that it is easy to change from a B-1, B-2 tourist visa to an F-1 student visa. Is this true?
No. It is possible to change from a tourist visa to a student visa, but it is a time consuming process. U.S. Citizenship & Immigration Services always wants to know your primary reason (intent) for entering the U.S. and the events leading to a change in status. It is best to be completely honest about your intent when initially applying for a visa. Read more about visa intent at EducationUSA.