jeupsy wrote:Frankly you are pushing it a bit far here. Because someone never applied for a passport for their other country doesn't mean they can't get one now - any embassy will issue it within a reasonable time frame. Plus every single EU citizen I know in Ireland has a passport, and if someone spent enough times in Ireland to be naturalized without a passport, chances are they will not suddenly need an Irish passport to travel outside Europe if they never ever applied for one from their other country.
We are getting into off topic...
Getting a passport from you embassy is neither cheap, quick nor easy. In some cases, besides money and extra documents to gather, you will have to take a day off from work and go to Dublin. But yes, it doesn't mean that you can't get one, but...do you need one if you live in Ireland and just became Irish citizen or maybe even dropped your previous nationality?
I do know a few people from EU countries who never applied for passport in their home countries because they never had to get one, as national ID card was sufficient. Would you apply for an international drivers licence, pay fees, take your time if you could drive abroad with a regular drivers licence from your country? That's the same thinking behind not getting a passport.
And in case of Ireland, Irish passport is you main ID, as you can't get national ID card yet (although the Irish government has begun roll out of a biometric ID cards) and you may need your Irish passport not just for traveling. Besides, Irish passport gives you the right to travel to US without visa, whereas citizens from a few EU countries still have to go to US embassies to get a tourist visa and rejection rate is quite high if who have a close family member you lives illegaly in the US. With Irish passport you can visit them with no hassle.