How old is the pup? It is possible to do the neuter if his neutering parts don't drop, but it is a much bigger surgery. They would, in a manner of speaking, have to go in there and look for his testicles. Much bigger incision, much bigger surgery. Once the testicles have dropped, it really is a simple procedure and has a small "wound" area. Your friend could wait a while until his testicles descend to save her boy a little recovery time. Kaji wasn't neutered until after his first birthday and he doesn't know he's only "1/2 man."
Please don't tell him, he likes being the man of the house.
