You can get used to anything if you HAVE to. Me, I don't have to, I have a hot water heater.
Locals are very used to cold water showers and many in fact prefer it. Some locals don't trust a hot water shower as they just don't understand it or have experience with it.
They dont trust the electricity because it shocks them. But its not the of the heater, it is the bonehead who installed it. Electrical tape only works if you use it.