The point is EU members converse with other EU members using English. English is the lingua franca of the EU. Knowledge of other languages is not essential. If it was so important, Irish people would be about as Eurosceptic as British people. The main difference between Britain and Ireland is the Irish haven't been fed a diet of Europhobia from their politicians and media.
NI were sorted even before this as most of them enjoy Irish citizenship.
I was referring to the trading arrangements which would either cause the end of the UK or restart the troubles depending on which side of the argument people were on. We have jumped in last day or so from just a legal text (that the UK government was threatening to rip up) to a full agreement on risk rating of goods, procedures, staffing and monitoring. Despite the current situation re trade talks it would be a big news if people cared about Northern Ireland.