I understand not liking the idea of a potion bandolier, lol. And yes, if you wear one in town, I'm sure you would be targeted by thieves (at least, ones who know what the potions are). Of course, if there's no easy way to know what's a vial of oil and what's a potion of healing and what's just water with food dye, it sounds like a fairly easy thing to foil.
And yes, I realize, not letting people grab potions or smash bottles in combat is bending verisimilitude, but as I said, allowing that sort of thing led to more problems in the long run for me.
Example-
ROGUE: "Hey James, I want to use Sleight of Hand to steal the enemy spellcaster's spell component pouch/spell focus so he can't cast spells."
ME: "Uh...ok, sure..."
(Several encounters later)
ME: "The Goblin reaches up and snatches your holy symbol, so now you cannot use your channel energy."
CLERIC, glaring at Rogue: "You see what you started? I swear, first chance I get, I'm going to buy a bunch of holy symbols. Oh and also, have fun with those death saves, since I can't heal you."
ROGUE: "What have I done!!!"