Say I want to start a new airline. Right from the start are my new employees automatically a part of a relevant union (pilots, stewards, etc.) or does a union have to come in and get my new employees to agree to membership?
Also, if a particular company is unionized (or at least a soecific part of their laborforce) do I, as a new employee, automatically have to join the union or can I opt out if I so choose? A flipside to this may be that I personally don’t have to be a member of a particular union but the company is obliged to hire only union workers.
FWIW this is not a great debate about whether unions are a good or a bad thing.