The importance of gears cannot be underplayed in photography and the imaging industry. It’s often said that great gear is not required to make great images but most often photographers need very specific, sometimes expensive gear to create the shot that they are inspired to create. Great gear make images reliable and reduces the odds of unexpected failure at a critical moment of a shoot.
Great gear doesn’t make you a great photographer but a photographer that doesn’t understand the basics and principles of photographers with great gear is still a crappy photographer. A great photographer with crappy gear is still a great photographer, but that same photographer will make even greater images with the right gear, which is why the vast majority of pros invest in the best gear they can afford.
Below is a constructive breakdown from Roman Fox about the Importance of Gears from YouTube.