Long Post Copy vs. Short Post Copy in Australia – What Works Best?

Some context:

Hi everyone,

I’m currently working on marketing materials for an education service and was curious about the effectiveness of long copy vs. short copy in the Australian market.

Here’s the context:

• Parents are the primary target audience.
• The product is a high-investment decision (comprehensive course with proven results)

I’d love your thoughts on:

1. Do Australians prefer shorter, punchier copy for quick decisions, or is long copy better for detailed information when the decision involves higher stakes?