Should I major in "Secondary Education" or "Art" to Become an Art Teacher?

I really want to be an Art teacher. I'm going to be a freshman this fall at Sam Houston. When i looked online at the college web site it said i would get a Bachelor of Arts, Major in Art Studio and a Minor in Secondary Education.

My parents are really skeptical of getting a degree in Art. They want me to Major in Secondary Education and Minor in Art.

My 12 year older sister has gotten her PHD in History and is basically
screwed without a job. It is because of the type of History she majored in. She now wishes she would have done something else so she can get a job. So now my parents are all on "Will you be realistically getting a job with what you Major in?"

Here are some question my parents keep pounding on:
--Would it provide realistic job opportunities if I majored in Art and Minored in Education?
--If I do Major in art and minor in education could i still get a normal elementary position if no Art positions are available?

I really don't know any information about being a teacher in general so please any comments are greatly appreciated.