The answer is a cuz i think i remember this story
I'm not good with religious things, but I think this might be helpful: https://www.wikihow.com/Confess-Sins
Our toys are designed specifically for younger children.
Just a simple thank you, if someone does something nice for you, keeping your elbows off the table at dinner, not eating loud and messy. these are most common ways of expressing good manners.