Trade union membership in Australia has declined to its lowest level ever of 12.5%, according to an article in The Age newspaper (paywalled) on January 6 2023. The experts mention several demographic factors that have resulted in the persistent decline. Even though trade unionists publicly state that worker health and safety is often their top priority, they never seem to use occupational health safety (OHS) in their marketing of union membership.
This article does not suggest that OHS be bastardised for commercial purposes or that the primary responsibility for safe work does not reside with the employer. Still, union membership may be purchased for a young worker, in particular, perhaps by parents or concerned relatives to assist in keeping their loved ones safe at work.