Am I correct in assuming that any kid can access the DT without an ID? If this is the case, then any attempt to protect the little buggers is all in vain if they are truly curious.
Rather, change the heading to "Songs For Kids" and remove offending lyrics therefrom.
Of course, we are now obliged to define "kids." Do we have a "G" section, a "PG-13" Section.
I am not opposed to making a set of lyrics suitable for our youth to become acquainted with the tradition, but I do think it will take some time and serious discussion.
And, BTW, I will put my time where my mouth is to help in determining just which songs might not be appropriate for children.
Twenty years a teacher -- Tom