When we say that trust needs to be earned, what we are really saying is that we are afraid and we want to maintain control over the situation. We are afraid because we do not know the other person, we have no history with them, we are unsure they can deliver as good a job as we expect, we cannot pretend them to be as committed as we are.
The problem is, when we approach a new relationship with this mindset, it is highly unlikely the other is ever going to earn our trust. And even if they will, it will be so because they have complied, they have gone along with our requests, they have checked all the boxes and eventually become a sort of clone.
This is not how progress happens.
Trust can be given, upfront. It requires a leap of faith, opening up and believing that someone else can achieve things that are not part of our current immagination, and yet are good. It means we can lose control, accept they might be better, and perhaps even step aside and let them on at some point. Trust is forward motion, and if we are solid enought to gift it to others, we can establish meaningful relationships that add up to much more than their individual parts.