A toe kick is a recess at the bottom of a base cabinet. It provides a recess for your feet so you can get close to the counter top without losing your balance.
If you do not think it is that important try standing with your toes against a wall.
Even if you do not typically put your feet into the toe kicks recess you still need it. After a couple of times bumping into the cabinet without a toe kick you will start standing farther back. That means leaning over more and therefore straining your back, shoulders and arms and generally making things uncomfortable for yourself. http://ergonomics.about.com/od/kitchen/f/toe_kick.htm
I don't recall ever seeing a toe-kick in a travel trailer or motorhome. The drop floors of some tiny trailers like Serro Scottys provide the effect of a toe-kick, but it appears to be inadvertent, not a purposeful design element.
Obviously, this is not an issue with rear-galley teardrops, but in standys with interior galleys, it would be. Has anyone else ever thought about this conspicuous oversight in the recreational vehicle manufacturing industry? Have you added, or thought about adding, a toe-kick to your galley design?