On a car or light truck, steering to the kerb is easy with no power steering. Power steering is really not needed above about 5 mph, or when you are trying to corner hard.
I had a 1978 van, over 3 tonnes max weight, over 1 tonne on the front axle, and no power steering. OK, I couldn't turn the steering wheel when the vehicle wasn't moving, and it was hard work in town, but no problem at all on the highway. The fear of losing power steering is a lot worse than the reality.