My life, my choice.
Believe it or not a lot of people do have the ability to leave the pub when it is still selling alcohol. I swear, I have seen it with my own eyes and even tried it a few times myself. I have also been a scoff-law and attended a lock-in or two. Nobody died.
Some people have difficulty leaving the pub if they aren't actually forced to leave, so the rest of us should be denied the right to make our own choices like the grown-ups we are? Then it's just "Shit happens. Life is not fair." for those of us it doesn't suit?
How about Shit happens. Life is not fair. If you haven't got the self control to go home when you should then maybe you shouldn't go out in the first place.
Using the law to force pubs to close just because some people, of their own volition, end up staying out too late sometimes is ridiculous! You are using the Garda and the courts, arrests, court appearances, fines, etc. to enforce a once size fits all policy.
Businesses are harassed and people hauled in front of a judge and fined for making free choices about what to do with their own time and money. And who does it actually help? Have you not seen how people behave a closing time if they feel they are not finished? The very people who lack self control, the ones you are concerned about, tend to speed up their drinking towards the end of the night. They may be heading out the door earlier but they are in a worse state than I would be with an extra hours drinking and the results can be seen on the street.
I find it interesting that there doesn't seem to be such a huge issue with people staying out far too late for their own good in countries that never had a tradition of state enforced early closing. People head home at various stages during the night and only a few businesses stay open until the wee small hours, to cater for the smaller numbers out at that time. Seems to me that the policy has a counterproductive impact or drinking culture.