Yes, the main purpose is for a bike hitch or rear carrying tray - I don't plan on much towing but having a hook-up for lights will be nice since bikes or cargo in the tray may block the normal taillights.
With that being said, I towed a small enclosed U-haul moving trailer about 1000 miles with my old 2006 Mazda5 with a class-1 hitch at 60-70 mph - the key is being careful both in loading/measuring/inspecting the trailer, and when driving. Make sure that you've got the CG far enough in front of the wheels that the trailer will be more stable, but not forward too far to exceed the 200 lb tongue weight - 10% of the entire trailer weight. With a little math, a bath scale and some 2x4's, you can measure the trailer and tongue weights accurately enough to ensure this. Otherwise, planning ahead, driving defensively, and being mechanically sympathetic will all help to reduce stress on the brakes, transmission, and cooling system.