I agree to a point. I don't think someone paying a cash fair needs to unveil. But if you don't believe transit passes need photo ID then it should apply to everyone, not a select few. 

But where do you draw the line. 

What constitutes "where it is really required",  and in all other situations where it isn't required, why is preferential treatment given to one religion over any other?

And if it isn't really required for religion "X" & & "Y" , why do I still have to abide by it. I'm atheist, I don't have a religion to fall back on in such a situation. I have to abide by the rules surrounding identification.

If you take issue with photo ID, then offer an alternative means of identification.