[logifail]

> You need more than this to get on an aeroplane, but that also applies to domestic flights in the UK.

Can you clarify what you mean by "more than this"?

I've travelled on many domestic flights within the UK, and ID is not routinely checked.

> If this was your best example of governments lying and changing the rules

Ouch.

The common travel area has its origins way back in 1923, the rules are clear, no-one is lying.

It's just that it's hard to prove you are entitled to its benefits without having an ID document with you that - if you're entitled - it says you don't have to have with you...

[outop]

When did you last travel on a UK domestic flight? You definitely need government issued ID.

You are suggesting that having to show any photographic ID is the same as having to show a passport. That's obviously silly.

No one has to prove that "they are entitled to not show a passport" by showing British or Irish ID. This is a fantasy.

On the boat everyone, British, Irish or other, has to show ID of some kind. No one has to show a passport. At the land border no one has to show anything.

[logifail]

> When did you last travel on a UK domestic flight? You definitely need government issued ID

"a spokesperson for the CAA, said: “UK aviation security regulations do not require a passenger’s identity to be checked for security purposes prior to boarding a domestic flight, in the same way when travelling within the mainland on a train or bus. Any further requirement on behalf of the carrier to provide identification may be a condition of travel by the carrier itself.”"

https://www.independent.co.uk/travel/news-and-advice/british...

[outop]

Did you read the headline of that article?

You need government ID to get on a domestic flight in the UK. You also need government ID to get on a flight from the UK to Ireland.

As with the sea border and the land border, this completely invalidates your claim about what ID is required to travel between the UK and the Republic of Ireland.

You don't appear to have travelled between the UK and the Republic of Ireland, ever, or to have flown domestically in the UK since 9/11. You stated above that "they do not check ID on UK domestic flights", not "the CAA does not require ID but all airlines do". The first statement is untrue. Not sure why you are making stuff up in support of an urban legend about the UK/Irish border.

Even if there was a difference between the ID required to board a flight from the UK to the RoI and the ID required to board a UK domestic flight (there isn't - both require govt ID, not necessarily a passport), the situation at the boat and at the land border completely disproves your original claim.