At some point, there needs to be some sense of "if you're not going to do it right, don't do it at all". Anybody could give a haircut, but do you want a bad hai

At some point, there needs to be some sense of "if you're not going to do it right, don't do it at all". Anybody could give a haircut, but do you want a bad haircut from someone who does not want to improve?