The phrase "about whether to join" is correct and usable in written English.
It can be used when discussing a decision or consideration regarding joining a group, organization, or activity.
Example: "We had a long discussion about whether to join the new initiative proposed by the committee."
Alternatives: "regarding the decision to join" or "concerning joining".
Author recalls passage by V. S. Naipaul about whether to join a protest or not.
Some have thought hard about whether to join the Shadow Cabinet.
Jane, true to her character, was wracked with indecision about whether to join him.
And the government still hadn't made a decision about whether to join his case.
Political analysts had suggested France was hesitating about whether to join America in carrying out air strikes or stick to emergency aid.
Those who are still on the fence about whether to join a plan may want to enroll now, before the penalties for delayed enrollment increase significantly.
Those issues were thrust into the news recently by word that 13 customer service workers at Etown.com, a publisher of consumer-electronics reviews and product data in San Francisco, were about to vote on whether to join the Communications Workers of America.
After lashing out at the media — "very rarely do they get it right" — she pointed out that big and consequential decisions had to be made about Britain's future, such as whether to join the European Exchange Rate Mechanism, which was the precursor to the euro.
This will give you a good feel for whether you are about to join a household keen on wild partying (great if you like that, not so great if you don't), dinner parties or occasional events, and if fair warning is the norm.
Depending on whether the "slightly agreed" category was included, interpretation of the results may differ – for example the majority agree with all but three statements (those about whether physicians expected to join the network and about capitation).
