I suppose but just remember metal bending full on is, while possible, a big handy cap since you need to touch most metals, note I say most, or have rather great concentration. The only worst thing is to be a water bending in this city after all it's almost a dry site based on Las Vegas Nevada. There's fountains and the like but most of it is not in large quantities or in mass. Fire and Earth Benders have a strong grip in this city.