There is something else that wasn't mentioned in this thread. Solano Lopez was well known to avoid the battlefield at all cost. Even though he placed himself as the commander-in-chief of operations, he led from far behind. There are several reports that once he heard that bullets were getting near, he'd ride far to the back. There is not a single example of him facing danger on his own. Even in his last day. When the Brazilian cavalry reached his camp, he simply fled, leaving his men behind, without orders or leadership. He was unlucky that one Brazilian cavalryman reached him and speared him. After that, he tried to escape through the river, but was shot.
But he never bothered sending small children to fight his war.
One is compelled to ask why anyone would want to follow Lopez.