With young kids I start them off by tuning the guitar to a chord. DADF#AD. One finger plays all your major chords. I, IV, and V are easy to find and they can have the satisfaction of making music really easily and quickly. After a while of this they're hands and fingers are stronger and can make the standard chords easier. Works really well. I've been teaching guitar for a number of years and started using this method with younger kids after several turns of trying to teach the kids standard fingerings, having them get really frustrated and then quit.