Who does this?.... Why can it be counted as an arts subject..... does it have more humanities based assessments within it then an average science? Can you analyze and manipulate people if you major in it?
if, when you say, "can you analyze and manipulate people if you major in it?", you mean, can you do "real" psych subjects and become a "real" psychologist, the answer is yes.
anyone can do psych subjects if it fits into their timetable, and to become a psychologist, you can go through many pathways, as long as you've done the prerequisites and are good enough to undertake the honours year, and then do a doctorate or masters.