Hi Hannah, we have found that attitude and work ethic to be so important, so if the candidate has these (as well as the qualifications you need), then there is no reason to be concerned about age. Obviously experience comes with age, but we need to be willing to back keen younger people as well.
It also depends on the structure of your existing team, as diversity in terms of age, sex, experience etc. has shown to continubte to high performing teams.
Your question also triggered my memory about current Wage Subsidies if you are looking to engage new employees who are between 15 and 29 years old or 50 and older, are parents, Indigenous Australian or are registered unemployed. This could be relevant in your case.