What grounds morality?

 In the most recent issue of Philosophy Now (No 153, Dec 2022/Jan 2023), they’ve published the answers to the last Question of the Month: What Grounds or Justifies Morality? I submitted an answer that wasn’t included, and having read the 10 selected, I believe I could have done better. In my answer, I said, ‘courage’, based on the fact that it takes courage for someone to take a stand against the tide of demonisation of the ‘other’, which we witness so often in history and even contemporary society.
 
However, that is too specific and doesn’t really answer the question, which arguably is seeking a principle, like the ‘Golden Rule’ or the Utilitarian principle of ‘the greatest happiness to the greatest number’. Many answers cited Kant’s appeal to ‘reason’, and some cited religion and others, some form of relativism. All in all, I thought they were good answers without singling any one out.
 
So what did I come up with? Well, partly based on observations of my own fiction and my own life, I decided that morality needed to be grounded in trust. I’ve written about trust at least twice before, and I think it’s so fundamental, because, both one-on-one relationships (of all types) and society as a whole, can’t function properly without it. If you think about it, how well you trust someone is a good measure of your assessment of their moral character. But it functions at all levels of society. Imagine living in a society where you can’t say what you think, where you have to obey strict rules of secrecy and deception or you will be punished. Such societies exist.
 
I’ve noticed a recurring motif in my stories (not deliberate) of loyalties being tested and of moral dilemmas. Both in my private life and professional life, I think trust is paramount. It’s my currency. I realised a long time ago that if people don’t trust me, I have no worth.