Seems that the upcoming airshow in Melbourne in March 2023 will have free kids tickets (for those under 15 years old), but must be accompanied by an adult. Adult tickets are $94 ($89+$5 TM handling fee). I guess a teacher with a class of kids would score the best value :-) Appears that up to 9 free kids tickets is the limit per adult / booking.
More info on the airshow here: https://www.airshow.com.au/airshow2023/PUBLIC/index.asp
The Friday evening and weekend shows are spectacular and traffic management getting so many cars in and out quickly was impressive.
Tips for those interested in going to either event and staying the day:
* bring camping chairs and/or picnic mats
* several litres of water or similar drinks, hats, umbrella shade and sunscreen (2019 was as hot as it gets and though there are refillable drink stations there is not much shade)