I'd suggest a convention regarding the use of singular/plurals if only I knew how to formulate it in English properly :) Hopefully, someone has a good English formulation to replace mine.

The idea is to pay attention to what noun in a (more-or-less) compound term we employin plural form when naming things with multiple values. I.e., just as we use, say,documentTypes, I think we should most probably usechildPaths instead ofchildrenPaths, etc.

I've seen this (i.e., using the plural form for all nouns in such composed term) happening a lot and I don't quite agree with it.