https://democracyjournal.org/arguments/a-modest-proposal-tax-worthlessness/

Rent-seeking comes in many forms, including barriers to entry like onerous licenses, having to belong to a particular trade union in order to work in a trade, imposing tariffs, and corruption in government. In all cases, no additional wealth for the nation, sector or society is created.

Sometimes, requiring a license is necessary and makes sense. For example, doctors are not allowed to practice if they don’t have a license – that is to protect the well being of patients. Pilots are not allowed to fly passenger planes unless they have a special license – that is to protect the lives of the passengers. In such cases, license requirements make sense – the reasons are obvious.