Depends on how young it is and if it is sick or not if it will survive. I found two kittens years ago that were abandoned. Neither of them made it. I was young at the time and didn't take them to the vet. If I were you, I would take it to a vet and have it checked out. Vet will be able to give you a better assessment. Being a cat lover myself, I know I would probably want to keep it too. Good luck!! Keep us up to date on the kitty.
Oh, and if he is OK and you do keep it, kittens are just like puppies. . . love to get into things
But they are a lot of fun!!