How whiny are the people who complain because the blacksmith is not always in the same place. It seems that they don't really enjoy getting into the world, you could already ask villagers where that blacksmith is, for example. So, do they want everything mechanical or immersive and with the R for Roleplay in the RPG?
It's like complaining because in a videogame they have put signs in the world without implementing the convenient minimap or direction arrow or compass in a corner of the screen.
Although, well, I suppose it would make sense for NPCs to have a routine with which they are generally on a working schedule... with exceptions like when they have to go to sleep or buy bread and eat XD
And you go until you find them and choose the option "sell/trade" when you see them... and the man answers you: "friend, in case you haven't noticed, I'm eating now, if you don't mind..." XD