i just got my pup from a petshop a week ago. he was caged in there since he was born; he is now 10 months old. whenever i take him and my other maltese pup to walk, he refuses. he just lays there, waiting for me to pick him up. i sometimes have to drag him, just so he doesnt go inside the house. please help me on reasons why he wont walk. no rude answers. thanks 
also techniques on how to get him to walk.
A PET SHOP?!?!? ARE YOU CRAZY?!!?!? That puppy probably came from a puppy mill and was ABUSED and has never been outside in his LIFE!!!! That’s probably why!!!!!!!
Go to this website for more:
http://stoppuppymills.org/
But something you can try to do is ease them into the whole walking experience. Go outside to play bring treats, make going outside a pleasurable experience. Then move onto taking short little walks with him and make sure to give him lots of treats and tell him he is a GOOD BOY! Or maybe the problem is he doesn’t like the leash so to test it put it on him inside, see what happens, observe him carefully! If that’s the problem make putting on the leash a pleasurable experience in a place where he is comfortable. Give him many treats!
Good luck and hope this helped!