You don't use emojis because you never received positive reinforcement on expressing your emotions because no one cares about your emotions. Normies just send happy face, sad face, shrug, eye emojis etc because other people will cater to and engage with their emotions to deepen social connection. But no one cares about you. So you probably used emojis in the past and were ignored because the only reason anyone ever interacted with you was for practical purposes
