

No. Pickpocketers usually work in massive crowds in order to rob people. If a robber uses violence in a massive crowd, they are far more likely to be detained by said crowd even if they can knock out the person they are trying to rob.
Even threatening violence in a crowd could make people think you’re a terrorist, and the crowd response is going to be different than if you’re an unarmed pickpocket.
Eh. The person who makes the porch pirate videos hasn’t gotten in trouble yet.