yes, it's ok for a beginner. a kit lens is fine unless you already know what type of photography you want to shoot, then you can decide what lens or camera system to buy next.
in the meantime, know your camera well, the controls, it's strength and limitations and how to properly use it.
better start learning about framing, composition and having a mindset of always analyzing a scene, practice alot just like any other form of hobby, sport or passion. and yup, start taking photos of people, scenery and objects so you'll know what you want to shoot. learning how to post process your photos properly is also a big plus if needed.
t. someone who still uses a Nikon D80 and an old chink camera phone