Based on recent posts, I believe that what the players WANT to do should always be number one on so small details. Since you know, they are the ones doing it
Hey, free fodder for a repost: The guy in the meme template is a jackass. A lot of people have been liking the replacement that’s just Calvin (of &Hobbes) sitting at a similar cardboard booth.
Here you go, whipped this together as I hate the original: 
Counterpoint:The DM is also a player; one who spent potentially many days working on a setting and campaign to establish a particular mood (definitely not just me).
I'm not saying that the players have to bend over backwards to keep an encyclopedia of their inventory, but if the DM is running a relatively serious survival-focused campaign that the players have agreed to play, they should keep more careful track of their inventory for arrows, food, material components, etc.
Plus, this brings value to different proficiencies, like woodworking (for fletching), Brewer's kits for purifying water, etc.
I feel like when the players are agreeing to play, it should be established up front how intense everybody wants it to be and, should a disagreement arise, there should be the ability to compromise.
But... whats the problem into not being out of ammo ? Would an entire campaign lovingly crafted by a nice DM survive (get it?) That detail ? Wouldnt ammo tracking be a minor survival aspect anyway ?
Your point is good thought. But is it good enough to force it on players already tracking lots of stuff and not enjoying tracking this specifically ? I dont have the answer, it would depend on the player, the DM, and the campaign.
Obviously if its a more typical campaign and this wasn't a previously discussed rule, then the DM shouldn't just spring things like that on the players
Let them just use ammunition as they please.
They sure as heck run out of it if I want it, be it an unlucky check roll makes their weapon break/misfunction/jam or Larray, the arrow stealing gnome (high stealth value) that got lost trying to slay the dragon but hid in its lair to steal all the arrows of the adventurers.
Everything in a game has to result in the joy of the participants. If counting stuff is annoying to them don't do it. If they like the realism do it
Thank you ! Exactly. Do it only if its fun for the players.