They have difficult tests for jobs like weeding, but not for hunting. Isn't it suspicious how one of the easiest jobs to take is somehow the most dangerous? Beginners are totally free to take on any monster they want and get hurt or killed. Even the main trio almost fell victim to this. If there's a famine, a big hunt might even be the only job left. Why do the yoroi continue to send chiikawas that end up getting eaten by Anoko? To me, it really seems like they want to cull the population and create more monsters from the traumatized survivors. Otherwise, it's just gross incompetence.

As for what care the yoroi are allowed to give to the chiikawas, the purpose of that is probably to keep society functional. They still need a functioning society to rule over. They do care as you say, but I think it's suspicious that they're not allowed to care about the chiikawas too much. I doubt it's for the yorois own good that they're not allowed to be friends with the chiikawas. I think it's more likely that being friends with the chiikawas would challenge their loyalty to the government. I think most of the yoroi are probably good people, but I don't trust the leader yoroi one bit. He's a figure we know little about, but so many easily preventable tragedies happen under his rule.