Part of me has problems with the thought that these things aren't necessary. One thing is to willingly turn down some comfort in order to become more independent in our minds. Another thing completely different is being forced to take cold showers for indefinite time. You would hate it. You would try anything at hand to get a hold on a hot shower.
The more you were forced to take cold showers, the more you would hate your oppressors and the damn cold shower. Specially when you can't see a hint that in the future you will have access to one hot shower.