Well, yes, but there is much more to the humble tripod than meets the eye. For sure it will keep the camera steady and allow you to take photos with a slower shutter speed than handheld, but it is also an aid to composition. Using a tripod allows you to compose your shot better by making small adjustments to the tripod or to the camera. It also allows you consistency in your framing when making an HDR photo or a panorama or in commercial photography.
Use a tripod to free your hands and yourself for other things like adding/adjusting filters or talking to your model/subject, something that is vital in portrait photography. You are no longer a photographer hiding behind a camera but become another person interacting with someone else. That interaction usually brings the subject to life.
Best of all, a tripod slows you down. You don't need to rush everything with a tripod. Instead you can take your time and think your shot through. Step back and think before you press the shutter release. Wait for the light or the action, adjust the lighting, or review your last shot and adjust the camera or the subject accordingly.
A tripod is much more than a piece of equipment, it is the beginning of a new approach to your photography. Use one, you might just like it !