I do both and I don’t always step directly forward either if I am going to step. Instead, sometimes I will step at an angle in relation to my opponent to better have an angle to work with or off of my jab with or if I think he is going to maybe counter my jab. I also can move clockwise or counterclockwise when throwing my jab and do. Moving the Cat and into the forest I go to lose my mind and find my soul shirt opposite way like to your right when you are leading with your left and jibing just means you have to take a slight step with your back foot first to your right. Also when doubling and tripling up with my jab I am not usually stepping on that second or third jab then either. While stepping at an angle will take just a little power off of it I find certain advantages than with taking and using that angle.
Cat and into the forest I go to lose my mind and find my soul shirt, hoodie, sweater and v-neck t-shirt
Best Cat and into the forest I go to lose my mind and find my soul shirt
Also if you are always just stepping straight forward when you throw your jab you then are making yourself more predictable and setting yourself up for being countered if you have an experienced opponent. Speaking only for myself it’s incredibly difficult to maintain a measure of Cat and into the forest I go to lose my mind and find my soul shirt proficiency particularly if you are among the best in the world. Why it’s hard could be compounded by someone looking to take your job away. But it’s probably as simple as that a human being can really only operate at peak performance for a limited time.