Earlier quoted context omitted.
> Who is going to pick the lock on somebody's house to break in? Wait, why wouldn't this be better than smashing a window to get in?
Because it takes forever. Front door locks are admittedly not so strong, but it could still take a good pick-lock several minutes, while a window could be broken through in seconds. As for being stealthier… Windows can be cut stealthily, and crouching by a door for five minutes looks rather suspicious by itself.
Still, banning tools is not the greatest idea.