Not childless.  I have 10 great nieces and nephews, so I have participated in
the "potty-game".  I guess limited because the men in the family aren't
usually involved in "the game".  Maybe chidlren's potties wihtin the
bathrooms of each sex? But I suppose that would only apply to older kides
(3&up).  Or as my roomate has suggested "family" bathrooms(cross-sex),
similar I guess to the concept of unisex.  Never seen them before but I
suppose they would work.  Good dialogue.