Do freelancers ever regret not going through formal training?

[Btaliat]

Freelancing services can thrive more for freelancers that go through formal training. But that doesn't mean that they cannot still make money even without formal training. However, there may be some opportunities that they may be missing if they don't go through the formal training. While other may regret because they are missing opportunities, others may not see it as anything. What do you think? What's your opinion about this? Share it in the comment section below.