There are liability questions attached to formal qualification. A company that sends out unlicensed / untrained staff to fix something will have a harder time

There are liability questions attached to formal qualification. A company that sends out unlicensed / untrained staff to fix something will have a harder time convincing a judge that they did their due diligence if something goes wrong. I am not saying this is good or bad, just that it is legal reality in parts of Europe.