If kale is too tough for your liking, I have three tips you could try. First, make sure you chop your kale as finely as possible. It is much easier to eat small pieces than large leaves. Second, try massaging your kale before adding the other ingredients. Add the kale to the salad bowl, add a drizzle of olive oil and a pinch of salt and "massage" for 3-4 minutes, squeezing the kale in your hands until the leaves are softened. My third tip is to just use baby kale instead of mature kale. Baby kale leaves are much more tender and not too fibrous at all! Plus, they require much less prep!