I was surprised to see that the local railroad company, accesses Health and Fitness data. I use this app only as a timetable for trains.
The Health app can track your daily footsteps and the flights of stairs you climb. You can manually add other information like body weight and caffeine intake, and track additional data with other apps (such as nutrition and fitness apps) and devices that are compatible with Health (such as Apple Watch, AirPods, weight scales, and blood pressure monitors, all sold separately).
Is there a plausible reason why the railroad company wants to collect my health data? How can I prohibit this (expect uninstalling the app and use web site)?