Children under 16 years of age are usually included on a responsible parent's application form.
Children aged 15 years and under:
If you intend to apply for Australian citizenship on your own, you must be a permanent resident when you apply and when a decision is made on your application. You also need to be living with:
•a responsible parent who is an Australian citizen or
•a responsible parent who is not an Australian citizen and you would otherwise suffer significant hardship or disadvantage.
Your application form must be signed by the responsible parent you live with.