Another possible source of delay was armies. They were always on the move somewhere. Perhaps the caravan would have to step aside and let war elephants, horses, and bowmen use the roads first. And then dacoits were sometimes a hazard. We have a well-armed caravan.
Dacoits are cowardly fellows.
Unless they have a clear advantage, bandits will never attack. But Uncle didn't seem convinced by his own argument. Surely it's possible they might creep into camp at night and cut loose a few sacks of goods. Lord Shiva protect us. He cleared his throat as if clearing his mind.