you have to hand all your stuff to a guy at a window, he puts it in a bag, then you go to a medium sized room with several shower heads spraying towards the middle...
so you don't just get your shower, you get the water bouncing off a dozen naked homeless guys...
the water is a tepid, narrow, painful jet...
i caught scabies and athletes foot...
...
i've taken one other one at a shelter in another city and state and it was identical...
....
gym is way better, otherwise i'd rather take a bird bath in a random bathroom sink...
To add to @garbagebagel's point I am not sure that a homeless person with a car is very common in Eurasia.
But come to think of it, this depends on how much people are willing to move around and at what point are they considered homeless, e.g. if they can't afford to sleep anywhere except for the car but have a room in a next town etc.
Also, I am now not sure what is the statistics of ownership of things like cars in a group of homeless people in different places. Could be wrong about the idea that most homeless own close to nothing but don't know if such a statistic exists.