BCL
Engineer
I believe the concern with showers at stations is that stations that already have issues with the homeless are going to be an even bigger magnet for the homeless if they've got showers (even pay showers), and that problems with cleanliness are going to be magnified if the homeless start using them. Once you've got showers, it would be tough political goings to maybe have someone check for tickets as I remember at the Amtrak waiting lounge at NYP.Showers would be nice and are on my wish list... But they might end up costing Amtrak money! The tipping point for my wife between coach/sleeper is her morning shower. For me, if I were do be planning on doing something during the day a shower would be important.
The previous comments indicate some of the logistical challanges for on board coach showers. Having a shower available at or close to stations might work. I have used truck stop showers which consisted of a toilet and small sink and a small shower and were fully functional though not much larger than most rest rooms. They had a towel deposit and the clerk gave you the key.
Dear Santa...
Personally - I remember waiting to use the men's room at the Richmond (CA) BART station before heading for the unstaffed Amtrak station in the same complex. I briefly saw someone going in so I figured a few minutes and it would be OK. I checked my watch and the guy didn't get out for 15 minutes (our train was scheduled to arrive 30 minutes from the time I started waiting) and had a noticeable stench. When I finally got in to do my business, I noticed some abandoned (and disgusting looking) clothes left on the floor. Now if Amtrak allows for something like this in their stations but with showers, I expect similar complaints.
Truck stops were mentioned. However, they probably charge a lot and their typical locations off the freeway and away from downtowns makes them unlikely places for the homeless to attempt to take a shower. Not only that, but as private businesses, they're far more vigilant about keeping out people with poor hygiene.