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Just anecdotal I know - my D, who attended the UCSD Jacobs School of Engineering as a CS major was in Muir and out of a total of 6 or so roommates over the time she was on campus she was the only one who was engineering. I think Warren is known more for the engineering ‘self-selection’ but then I guess that what some of them want. However, Muir also has flexible GEs so is good for engineering/hard science majors even though it has plenty of people from the humanities and all majors as well, and really there’s a mix at all of them to some extent. On top of all this, one doesn’t always get assigned to their first choice and I think the housing app requests one enter a first and second (and maybe third) choce for the college so even if they self-selected to one they may end up in another. I think each of her roomies was in a different major from each other if I recall. </p>
<p>If your D wanted to room with people from different majors it’d be very easy to do and odds are that she would end up that way anyway. Discounting UCSD because of a concern about rooming with people of the same major doesn’t make much sense to me since it’s so unlikely to happen and probably no more so than most colleges.</p>