I flew a few years ago and got out of the Hobby. Never once, other than take off and landing, had I used the rudder. Now that I'm back in the hobby, and have accomplished being able to fly on my own I'm starting to understand the Rudder. I'm getting pretty good at stall turns, and I use the rudder in some turns around the field. I'm starting to use it more on my landing to line up the airplane.
But, I think learing to fly on your own with just the right stick isn't a big deal. Rudder can come later. It hasn't presented a problem for me. Knock on wood I haven't crashed since returning to the hobby this year.