Statement:
An average person in Australia drinks less alcohol than in Ireland

In the Alcohol average daily consumption rating Australia holds position #103 ²⁰¹⁶ out of 189 and Ireland is #71 out of 189 ²⁰¹⁶.
Position of Australia is better than position of Ireland.
Both countries holds average positions in the "Alcohol average daily consumption" rating. So Both sexes is an average for both Australia and Ireland, compared to most countries of the World.

Referencies:

1. Alcohol average daily consumption ²⁰¹⁶ by WHO

   The countries in the rating sorted by 'Both sexes' in descending order.

   Australia	'Both sexes' value is	28.9
   Ireland	'Both sexes' value is	34.6