I’ve lampshaded this in one of my game worlds. There’s a country in which the sentient undead are generally accepted as regular citizens, and necromancers are ordinary professionals who provide services for the metabolically challenged segment of the population. It’s seldom discussed, but the cemeteries, elaborate preservation techniques, catacomb and tomb burials, and grave goods like armor and weapons have a purpose: prepared emergency shock troops. If trouble is brewing, and it doesn’t look like the available guards can handle it, all it takes is a necromancer and maybe some diggers to provide reinforcements.
As it happens, that county, where undead stalk the streets day and night, and one of the rulers is a vampire, is a pretty decent place for kids (for a medievalish-fantasy setting). As one child-haunt put it when asked how he was faring, “Not bad, except for being a little stiff.”
Well, there was the alien kid with the religious parents…oh, wait.
