Accept the problem and change drink culture
There are many causes which lead to the ongoing misuse of alcohol in Ireland today, and for a very long period of our history all have been listed ad infinitum — the rounds system, below-cost selling in supermarkets, love of binge drinking, restrictive pub hours, etc, all of these have been examined and argued for and against for a very long time to no avail.
We, as a people, will never change our drink culture until we change our views and tacit acceptance of the problem.