in the netherlands for example, dutch citizens are entitled to different forms of financial support
when they study in a university (not private schools).
the rules differ from country to country, and you'd be best off starting your inquiry through Irish resources,
where you'll find the information aplicable to you.
government subsidy can come in the form of support during your studies for example,
so it's not always evident at first glimps what it will actually cost.

if you have some contacts living there, you might want to talk to them because the rules change from time to time,
especially since the unification of europe.