Could be general polarisation, or just that it's a "but in my case it is different" visceral response.
While people might not be moved by data, it would be interesting if some more public information on what people actually use was available. Imagine data points like unpatched/unpatchable iOS or Android devices being multiple percentages, or outdated browsers. Similarly, the effort per app/OS combination; if it costs X to support Y configuration, then it would be somewhat easier to see if it's more about the will to do anything rather than real-world problems.
While people might not be moved by data, it would be interesting if some more public information on what people actually use was available. Imagine data points like unpatched/unpatchable iOS or Android devices being multiple percentages, or outdated browsers. Similarly, the effort per app/OS combination; if it costs X to support Y configuration, then it would be somewhat easier to see if it's more about the will to do anything rather than real-world problems.