Hi there, I have a 9 week old AB. I thought it was best to get him walking right away at an early age but I'm reading on here not to do much until a year old? I don't understand. We are still working on leash manners, he's doing very well. The other day I took him on a trail where no one was around and I took his leash off. He did amazing, stayed right with me and when I stopped he sits. I was impressed, we did .84 of a mile. Is this too much? I'd eventually like a hiking partner but don't want to hurt him in any way. Thank you for advice.