At my college all the dorms had a kitchen for residents to use in the basement... is this not normal?
Which means it's not a viable fallback.
Imagine if every other room had a computer the student could just turn on whenever he felt like it.
In reality, the number of computers is of course more than one per room. No one is worried about the power supply.
Can you imagine if even every other room had an appliance pulling 1000W whenever the hell a student felt like blowdrying their hair after their shower?