I see both sides of the argument. At practice today I went over giving 100% on every play. I told them that I should have never told them to drop INT's. I did mention next time we'll just take a knee or run it out of bounds. I mean in the video you clearly see that my players could have returned two INT's for touch downs at the end of the game. This is what I love about coaching young kids (this is my first year coaching), they take everything to heart and most of them will take what you teach them and run with it. Thanks for responding and hope I can get more advice from you throughout the season.
I can see both sides of the argument, having been on both sides, so I'll explain how I approach it.
I almost told my kids to do just as you said, drop interceptions (we had 2 already in the game). I changed my mind, as I don't want these kids just dropping a chance for them to show what they can do. Instead, I told them that as soon as they picked one off, run the ball to one of our less-skilled players, hand him the ball for the run back. When we're up alot, I make all plays go to the weaker players, passing to or handing off to kids who haven't scored as often as others.
I won't call a timeout with 30 seconds left if I'm up by alot with the ball, but sometimes I do call timeout to give the opposing team a chance to get another play off before time runs out. Never on third down without asking the other coach about it first, though, so I'm not looking at running up the score.
I ran into this last weekend, where I was up 19-0 with time running down. One of my kids lucked into an interception (tipped pass literally hit him in the chest), and he ran it back. But before he got to the endzone, I saw him slow down enough to let his flag get pulled. He walked over to me with a big grin and said "I'm sorry, Coach, I could've scored, but I wanted to give Jacob a chance to score today." My response was a big hug. We ran a play for Jacob (I-formation, handoff to the lead back, pitch to the fullback, who was Jacob) and he was the one who pitched it to him, even though he could've scored easily.
I spoke to their coach afterward, and his initial angry response was eased when he learned why the INT wasn't returned for a touchdown.
Sportsmanship is huge to me, and character essential. Instilling this in young players is one of the reasons I coach.
Teamwork - two words, team and work.