It’s a sad truth that necessary change sometimes only comes in the aftermath of something going terribly wrong.

When I see a family that has suffered a tragedy calling for change – and it often seems to be a family campaign that makes the difference – I find myself in awe of their courage. Stephen Lawrence’s family working for a more equitable society, Molly Russell’s family calling for greater online safety and support for young people, Natasha Ednan-Laperouse’s family campaigning for better food labelling to protect allergies. I also wish that they’d never had to find themselves in that position.