Ask What is a freelance skill that is surprisingly difficult to market to potential clients?

[Brendan]

I have noticed that being good at proofreading is actually quite hard to sell these days. Many people think they can just use free computer tools to fix their grammar mistakes. Because of this, they do not see why they should pay a professional to look at their work. It is frustrating because a human catches things that a computer always misses. Do you find that certain technical skills are harder to explain to clients who want to save money by doing things themselves?