There are too many implications to just let nursing students come in and shadow without an affiliation. First of all, you would have to have a background check and be cleared by the hospital to be able to enter the facility, therefore you would need to be affiliated with an institution. Same thing with HIPAA. A facility can't take a chance on a student coming in unaffiliated, with no consequences (kicked out of school, termination, etc...) to violating HIPAA laws. Those are just a couple of reasons you will probably not find any facility that would allow you to come in and shadow without being in a clinical with an approved school.