D&D 5E: Arcane Trickster Mage Hand Lockpicking

Recently, a question came up during an Adventurers League (D&D 5E) session of why would a player choose Thief over Arcane Trickster? Other than flavor, an Arcane Trickster simply has more options. While a Thief can pick locks as a bonus action, an Arcane Trickster can do so at range with Mage Hand.


Simple, right?


Then during the same session, a druid wild shaped as a bear attempted to pick someone up with bear mouth. Despite nothing in rules outlawing that,  the consensus was a bear picking someone up with its mouth without hurting the creature was too powerful. I admit I didn't have a problem with that ruling.


But a mage hand lock-picking isn't too powerful?! After all, one subclasses 3rd level ability is vastly superior to another subclasses ability. Rather sketchy if you ask me.


If you've ever tried using a paper clip or a nail to pick a lock, it's not as simple as inserting the object into the keyhole. One tactile sense is huge. Or so I'm guessing anyway. Regardless, mage hand lock-picking is essentially inserting the tool sans any tactile sensations.


Whereas, a Thief can pick a lock as bonus action because they are exceptionally well-versed at it. And they are bloody right next to it!


So, an arcane trickster being able to do the same thing strikes me as wrong.


As a DM, I would impose disadvantage but the rules do state that as use of the ability. As a compromise, I wouldn't allow one's tool proficiency to apply. The PC isn't next to the lock. Lock-picking isn't something they excel at as part of the subclass. It's kind of like doing fine mechanical work with gloves on. Not very easy.


But that's just me.


Happy Gaming!


Next time.