In general, short focal length will give you wider view.
For example, a photo taken with a 18mm lens will have a wider view than the one took with 50mm lens.
But how wide is enough for you ... you may need to try it and see. The kit lens that came with my camera can do 18mm and so far I am satisfy with it. (But of course, the image quality is not as good as some of those better lens. I am thinking about getting Tamron 17-50mm f/2.8 to replace my kit lens later)
And I would like to share with you that, my lens choices change as I know more about my camera and photography. I started with a kit lens 18mm-55mm and a prime 50mm f/1.8. I was thinking about getting a Sigma 18mm-200mm OS lens. But at this stage, I would rather get a Tamron 17-50mm f/2.8 lens because of the image quality and wider aperture. (or faster lens). I may add a longer range zoom and few more prime lens later. At least that is what I like to do now, I may change my mind later.
There are a lot of lens out there, some of them are cheap and some of them cost more, a LOT more. In order to find one that meet you need, I think you may need to know more about the camera, photography and know why some lens are more expensive. At that time, you will have a better picture of what lens is good for you. Instead of others tell you what you need to get, it is you know what you need to get.
Sorry, I am not trying to stop you from getting advice here. I was in the same situation in the past, what lens should I buy?? But a lot of don't make sense expensive lens now make more sense as I know more. Whether I should get one is a different story. But at least I know why I need to pay more if I really need to get that lens.
So my advice is if you can find a cheap kit lens, go with it and learn more about the camera, lens and all the stuff that go with it. And you will know what you need to get in the near future.
Just like, I really do not think "Big Mike" will ask around for lens recommendation. Am I right, Mike?