You have an adjustable stem, not handlebars. And while drops aren't for everyone, a bunch of people do like them. And you don't have to be bent over all the time- most people cruise with their hands on the 'hoods' (basically where bar ends on a flat bar would be) or the 'tops' <-might be 'flats' instead, not a roadie which is on either side of the stem (where your hands would be at on a flat bar).

Do note that drop bars also tend to be quite a bit narrower than flat/riser bars...