And if your core priority is "simulating real life" rather than "rolling when stakes are raised", it would make sense to do so.
"Simulating real life" isn't the priority in this game.
If the mundane non-fantastical elements in the fiction don't work at least vaguely like real life then how the bleep is anyone supposed to engage with that fiction with any granularity?
Unless the assumption is that mundane non-fantastical elements will be ignored until-unless they become important, at which point they'll be diced for (or, in the case of equipment slots in BitD, quasi-retconned in).
Personally, I'd like to be able to have my in-character pre-planning have a lot more to say about my ultimate success or failure than that; if I have the right gear (in the blood-gathering case, a vial and a cloth or sponge) because I thought ahead to bring the right gear then I should pretty much auto-succeed in both my task (gather the blood)
and intent (deliver it to whoever it is that wants it), where if I blew my preparations and didn't bring the right gear then I'm (potentially*) screwed: the blood's been spilled and now I can't deliver it to anyone. And if the game rules don't allow for this kind of preparation detail that's a fatal bug, not a feature.
* - in the latter case, where I didn't have that equipment on me, IMO the GM is being generous by giving me a chance to overcome my in-character error via a roll to see if there happens to be anything there that I can scoop the blood into.