Although the NSW Government has provided some breathing room, licences providing same day alcohol delivery services will eventually need to verify age through an accredited 'identity service provider'.
If your business isn't up to this standard just yet, until June 2023, you may verify age through:
an alternative artificial intelligence system, or
requiring the purchaser to make a statement
The law is always changing, keep up to date and ensure you remain compliant with annual independent audits.