I think it's unhelpful to suggest that the task of evangelism is essentially the responsibility of ministers.

The truly changed, truly converted, truly Christian heart can say with John Newton, “I am not what I ought to be. I am not what I wish to be. I am not what I hope to be. Yet I can truly say, I am not what I once was. By the grace of God, I am what I am.

We are called to love others. We share the gospel because we love people. And we don't share the gospel because we don't love people. Instead, we wrongly fear them. We don't want to cause awkwardness. We want their respect, and after all, we figure, if we try to share the gospel with them, we'll look foolish! And so we are quiet. We protect our pride at the cost of their souls. In the name of not wanting to look weird, we are content to be complicit in their being lost.

Forgetfulness of God's grace is one of the greatest tools in the enemy's war against our souls.

Evangelists have absolutely no desire to physically or emotionally coerce anyone. In a sense, we are like doctors: we have a duty to tell you the truth, care for you, argue with you (if that is useful), but we can't compel you to do anything.

A gospel that in no way offends the sinner has not been understood.

We should want to evangelize because of the joy that God puts in our hearts. Ultimately, that's the best reason for sharing our faith.