I wasn't arguing against bodyguards being a thing, I was arguing that they should only be introduced alongside assassins, because otherwise bodyguards don't make any strategic sense. Admittedly you might be so overmanned that it doesn't matter, but by that token why isn't everyone so safe in general as to not require bodyguards at all? Patrols can deal with general threats, like snatchers but patrols are also lacking in the game at the moment.
Patrols don't protect against internal threats like berserk dwarves, vampires, or tamed animals reverting to wildness. I speak from experience, because patrols
are implemented. You know the notes system? You can use the notes as points on a patrol route. Hit
r when you're in the
Notes menu, and then
add a route,
name it appropriately, then
edit it, and
add the notes you want to use as waypoints and presto! you have a route ready to be patrolled. To get dwarves to partol along them all you need to do is put it in their squad's schedule, once you've made the route it should show up as an option for scheduled activities.
Bodyguards and by extension all guards for specific points are a strategic weakness because they divide your forces. The point of assassinations and indeed all covert guerilla operations is precisely to force the enemy to guard key installations and personnel, which causes his forces to be divided and prevents him from being able to deploy his strength efficiently against you. Even small advantages in numbers matter in warfare, so the few guards protecting your king that you thought did not matter actually did matter. Come to think about it that is probably why medieval kings tended to fight personally on the battlefield, because otherwise their bodyguards would not be able to fight in the battle and small advantages in numbers matter.
Guarding a strategic asset from hidden and internal dangers is not a strategic weakness. Vampires almost perfectly fill the same role as assassins, just with a different goal, namely to drink people, and they're already in-game. Yeah, in Europe kings generally took part in war for sure, but I highly doubt it was to add his bodyguard to the army since it'd usually be just one or two guys who still stick near him during the battle anyways, it was likely as a display of confidence (and possibly divine will?) to boost troop morale, and to offer the strong leadership that kings were supposed to possess.