Thank you ! Exactly. Do it only if its fun for the players.

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.