Turn signals use a stalk like any other car. Same for wipers, and much can be controlled with nice physical buttons on the steering wheel. Unless you have one of the new model S or X, in which case.. yikes
the turn signal stalk is not standard like any other car in the 3/Y. It is annoying and takes time to get used to. It is difficult to quickly switch when signaling left to signaling right (and vice versa) unlike traditional stalks. Can't speak for the other Tesla models.