Hope this isn’t going to be too controversial.
From the NSW government website
Every child aged 5 to 11 who gets a COVID-19 vaccine at the Sydney Olympic Park Vaccination Centre between 1 – 18 April 2022 will receive a free children’s ticket to the Sydney Royal Easter Show for use at any time during the show (8 – 19 April, subject to capacity).
Consent is required from a parent or guardian at booking and at the appointment. If the parent or guardian is unable to attend the appointment, a nominated accompanying adult can be identified during the booking process.
I'm not aware of a data source that separates "of covid" and "with covid" as this can be challenging to accurately define. If one accepts the premise that comorbidities increase as people age (e.g. lung cancer) then if you were to exclude the "with covid", this would likely remove more people in older age groups, increasing the percentage of younger people.