Well, your undergrad major often has little to do with what your career will be unless your are in a skilled major (like nursing). That said, i would go with what interest you and doesn't limit you in the event you change your mind. If you want teach K-6, it doesnt matter what your undergrad major is (at least in my state). You just need to take the licensing exam, do your student teaching. Where i live you need a masters to teach any grade, but again, at the elementary level it doesnt need to be a subject area and it doesn't need to be in education. You also get 5 years from when you are licensed to finish your masters. If you like the school environment but still are interested in psych, you could always pursue a masters in counseling or school counseling. Then you have options. I think it's most important not to get too specialized before you actually work in the field. Sometimes we think we want to do something but then actually find a job in the field, only to be disappointed.