Getting my associates

I am attending nursing school at a local community college in the fall. I plan to get my associates, then my bsn and eventually, maybe, get my msn. I have enrolled and everything is set, but the community college told me that after acquiring my associates degree, to obtain my bsn it has to be done in the state I live in. (Kansas) Why is this? I actually was accepted into the nursing program at Missouri state, but chose a different path right of highschool. I let my CNA expire through Missouri. Now I have decided I wanted to go to nursing school. I finished my CNA certification for the second time and I am so excited to be going to nursing school, but I would like to get my bsn at university of Mississippi. I would love to do the rn-bsn online bridge program but I'm confused why I can't get my bsn in another state. Just wondering if anyone else is or has had this same problem.