I am a parent of an only kid in the class of 20 so my knowledge is much less than others on here. My wife has a friend who has a kid in the class of 19. We live in Illinois. She told my wife by sophomore year if you get a job in Mo, and have an apartment you get in state tuition. Do other schools do that? Also I see you get automatic admission if you have a 24 ACT or a SAT of 1190. Is that common?
Missouri residency requirements:
https://registrar.missouri.edu/residency/residency-requirements.php
University of Missouri has had a dramatic drop in enrolment for various reasons. Admission standards may have been relaxed.