Why do we start with 0 potions every time we log in?

This is such an annoying thing to deal with, even though it's not truly major. It's true that I'm more affected than the average player because I'm playing a flask build (Volatile zombie on flask use), but even when I was just getting into Empowered monoliths on my first character, I would occasionally go in for the first echo of the day and get smacked by some big boy and be unable to heal. Is there a practical reason for this? If EHG does not want us to get full flask charges for free, maybe at least give us half? Although it's weird, because if I die, I get full flask charges.