I've got an Irish passport. It was when I was watching the World Cup in 1990 that I learned that I was eligible for an Irish passport - like many of the team members, I have a grandmother who was born in Dublin when Ireland was part of the UK. My gran had the posh Irish accent - like Wilfred Brambell's real life accent.
In 1990 my gran was very much alive and well. The nuance with registering a foreign birth is if either or both of your parent or grandparent is still alive, you need their permission.
It's not written into law - there's nothing saying "You must obtain their consent" - It's a case of "over my dead body" - quite literally- if either of them don't want to help with your registration, you have to wait until they are dead because death certificates are public documents, unlike passports which are the property of the issuing government. You can't just seize your Dad's or your Gran's passport off them.
My Gran died in 1995 and I am sure she would have had no objection to me having an Irish passport - and my Dad certainly didn't mind - it just took rather a long time to get round to it because I had to send notarised copies of my UK passport, Dad's UK passport along with originals of my birth certificate, Dad's birth certificate, Gran's birth certificate, Dad's marriage certificate, Gran's marriage certificate and Gran's death certificate.
I've got all the documents in case any siblings want to register their foreign births.
We met at my Dad's solicitor's office in Lancaster in July 2019 - he's a friend of the family. When I mentioned that I'd been aware of my eligibility since Italia '90, my Dad's lawyer recalled that unlike me, one of the players - Tony Cascarino - didn't actually have an Irish granny but rather an Italian one. Ireland/ Italy - close enough!
That match I watched back then was in June 1990 - roughly 29 years and two weeks before the meeting in Lancaster. The age gap between me and my Dad is 29 years and two weeks - I thought that was an amazing coincidence.
My Dad was utterly bemused to learn that he has been an Irish citizen all his life without realising it - he can apply directly for a passport without the hoops I went through.
My sole visit to Ireland was back in 2007 for work - on my British passport of course.
I've seen first hand what a difference it makes taking the train to Paris with an Irish passport.