I want to tell you in all honesty I know some of this discernment comes from us teaching directly from the Word. But I really think the way Bigger has helped him to think about character and seeing consequences of action has really been a huge help for my son. The connection to scripture and then to history in terms of something tangible that he knows is real has really helped. He is not what I would call a complacent child. He is not really a pleaser and he is a huge skeptic and questioner in general, so this is definitely learned. Bigger has been wonderful for my kids but especially for my one who needed help in this area the most.
Once again I am so thankful to have HOD to educate and disciple my children. The concepts are so in line with the Word and put together so well that my only focus using HOD is taking what is there and applying it personally to them. It has been a huge blessing to have that be my only focus. We LOVE HOD, however you say it
we love it! 
I know you all know that but just had to say it again! 
ETA-Disclaimer, no Bigger does not teach directly about what we do not allow our son to do. Just wanted to hedge that one off
but the biblical concepts are easily applied to our family's values and we find that all the time with all the HOD we use.