That's cool, we are good.
Man, I've just seen so many of those debates kick off when someone says one thing, another takes it wrong, and next thing you know it gets way blown out. Lots of folks get wrapped really tight about so it is one of the subjects I just really try to stay out of.
Out there where I killed that one is family land. My son and brother in law farm/ranch it. I can kill that pup now with easy opportunity, or I can try and kill it later when it is causing problems. Our fur isn't any good anyways so might as well get it done now, lol. That way I don't disturb the lease hunters during deer season.
But that situation is different from yours, and you did the right thing by having your grandson think about why he was doing what he was doing. I am a firm believer that if you are going to kill something you need to be clear in your own mind about your reasons. You and I are older and have a lot of experience and kills under our belt. Younger hunters especially while they are learning need to form their own knowledge base. My boys are grown now, but my daughter is 12. She has been hunting with me since she was 5. Killed her first deer at 6. I have always let her make her own decisions about what she was shooting, but also try to make sure she thinks about the decision before she does it. It has made her a stronger hunter and better person.