Comment by throw0101d
13 days ago
> Which is... quite weird, really, because the former opt-outs were mostly fairly minor.
Schengen and the Euro were hardly minor:
* https://en.wikipedia.org/wiki/United_Kingdom_opt-outs_from_E...
There were only four (now three) countries in the EU that got any opt-outs at all, and the UK the most opted-out items (4):
* https://en.wikipedia.org/wiki/Opt-outs_in_the_European_Union
What I'm getting at is that _in practice_ they would not be subject to Schengen or the euro anyway. For Schengen, see the Northern Ireland situation post-Brexit; exactly the same problem would emerge. For the Euro, see Poland.