pukunui
Legend
Aha. I usually don't follow those sorts of instructions. If the PCs get to start with a magic item, I'll work with the player to figure out what the item is, usually suggesting a few options. (But then most of my players are fairly casual and don't know what all the options are anyway.)Chalk this one up to character generation actively stating that PCs start with an uncommon magic item of their choice, and I didn't kibosh it. Note for next time!
I've seen where "just pick whatever you want" leads, especially when you throw in D&D Beyond - because that platform makes it difficult to see item sources. I was in a game where one of the other players had given themselves some tangler grenades, which are a nonmagical item from Dungeon of the Mad Mage. They had no clue - and neither did the DM - that those weren't just generally available items because DDB lists them under Adventuring Gear, even though there's no price for them.