Here’s a quick share of an article about saving Bulgaria’s last narrow gauge railroad:
The article is relevant as it discusses the plight of railways amidst shrinking ridership and escalating costs of operations and maintenance. The railways in the article is not a isolated case. It is quite common for many railway systems. The difference of this example from another similar service like those in Japan is that Japan Railways or private companies can probably absorb the costs and maintain the line not just as a service but to show their commitment. Historically, there are many railway lines, branches if you prefer, of the Manila Rail Road Company (later the Philippine National Railways) that had to be discontinued due in part to a combination of diminished ridership and escalating O&M costs. The Main Line South, for example, had several branches including an extension from Albay to Sorsogon that had to be discontinued. Nowadays though, the topic should also be considered as the railways in the country is being expanded again. There is still the issue of ridership and this will always be in competition with road-based transport as well as aviation.