Second, it is sometimes reasonable for a citizen who makes considerable sacrifices to have assurance that other citizens are discharging their duties. This is because she knows that she is not being exploited by non-compliers, and because she knows that, if she were not to make such sacrifices, she would be free-riding on benefits that others’ compliance brings (Lister 2020; Mason 2012: 541). Again, these concerns are likely to be more powerful when the sacrifices required of citizens are comparatively high.