This overgeneralizes. When I started using strict null checking (in Typescript) I found it had an unexpected impact: I started writing code differently. Slowly,

This overgeneralizes. When I started using strict null checking (in Typescript) I found it had an unexpected impact: I started writing code differently. Slowly, I also began _thinking_ about it differently. Ultimately you can't _make_ someone care if they don't want to. But if they already do care, some of these tools will make them better.