Doctors take justifiable pride in their skills, but most of us are one-man shows, and we want to do everything themselves. This is partly because we are perfectionists, and don't trust anyone else will be able to do things as well as we can. We want to be "hands-on" and this is good, because it allows us to hone our skills. However, this can become a problem , when we become the bottle-neck in the growth of our practise.
Your time is too precious to waste on clerical tasks, and we need to work as a team with our juniors, assistants and staff. We need to be able to train and trust others, and while they may not be as good as you initially, they will learn and improve if you give them the chance. You should do this, because this is the only way you will have enough time to do higher level stuff which you find more fulfilling as you mature and progress.