I think when you take a serious look at all of the claims being made about religious truths and the problems we address in philosophy about nearly everything, that everyone should be agnostics. It's the most reasonable position if we can just learn to think independently of the emotional and social need to accept what our particular culture has led us to believe. I became an atheist via agnosticism. I wonder how many other atheists were first agnostics? This is the reason I argue for agnosticism. It's the step in the right direction. It's easier to argue for. And it makes the greatest impact on the believer.