Does having a certificate or qualification mean anything?

Now this is a hard one. So many schools claim you need to be qualified. This is completely and utterly false as this is a portfolio-based industry, not a certificate-based industry. It frustrates us that many of the people issuing such guidance actually have no idea of what a working makeup artist is. There are many makeup artists who have never done a course or training. These makeup artists are at the top of the industry. If you work in fashion you ONLY need a portfolio.