Any students from UCSD, UCI, or UCR?

<p>I have some questions for any alumni or current students from UCSD, UCI, or UCR
-How difficult is it to switch to an impactied major in UCSD and UCI? I got in undeclared and I’m interested in the sciences
-How are the dorms in Warren College for UCSD?
-How is UCR’s biochemistry program?
-I live near UCR so I would commute there but if I go to UCI should I commute or live in the dorms? (UCI is about an hour away)
-How is dorm life in general?
-How is commuting to school?</p>