The answers given so far are all good ones. They express the ruminations of picture-taker across the color. There are factors to photography that every shooter must address exposure, style, portability, etc. And, of course, having the camera when you need it. Every shooter knows the feeling of seeing an incredible shot fade because they left the phone in the house when exerting Locality for a walk.
Need little details to explain this issue. However, I will give you a brief idea. First, you have to choose, either you will do it as a profession or hobby. Then if you do it as a profession then you have to decide which field and what kind of photos you are going to take. I will explain a little bit more.
If you wish to do matrimony photography or people’s portrait then you can use a mid-range camera like Canon EOS 6D, Nikon D610 etc. Also, you can find the same range as another brand as well. But Canon and Nikon have a wide range of accessories. So with the above-mentioned camera body and a few more premium lens and accessories, you can do a lot of things. If you have more budget you can go to pro level like Canon 5D series or Nikon D810 etc. Sony has the same range of mirrorless camera as well.
If you need to do sports and action photography then you have to consider some other features like continuous shooting (FPS – frames per second). When you do action and sports photography you have to consider the lens also. Hens you can’t close to subject more you have to use Telephoto Lens to get the best shot. Also, you have to consider the speed as well. Because in sport or action you can get the best shot by using continuous shooting. Mostly this kind of photography you have to engage always in the grimy atmosphere you should consider about the stability of your camera. (Weatherproof camera body is worth). Even you can use crop sensor camera hens more shot you can get with the crop. For an example, Canon EOS 7D MK 11 is ideal for this kind of photography.