Actually I do carry his backpack part of the way. We're both getting stronger because of it, but it's like 13 pounds (he's only 80 pounds), so it really does a number on him.
Personally, I'd like to walk all the way (without the foot injury), but the little one goes pretty slow, and it's about a mile and a half. We've done it a few times, though.
I'm not that ruffled, btw,
I just wanted to put in my two cents, hopefully without sounding like a whiner. I probably did, though.