The course pages say minimum age 6 but also ages 7 to 12. Which is right?

Australian Sailing's course pages for Tackers 1, 2, 3 and Tackers Combined show a "minimum age" of 6, while the prerequisites and descriptions on the same pages say 7 to 12 years old. Tackers Intro shows a minimum age of 7. Little Tackers is for 4 to 6 year olds.

The pages do not explain the difference, so the published age range for Tackers 1, 2, 3, Intro and Combined is 7 to 12. For younger or older siblings or friends wanting to join Tackers Intro, the Tackers Intro page says to contact your local Tackers centre.

Source: https://www.sailing.org.au/course-finder/61, /63, /64, /65 and /1106 on sailing.org.au