The process of joining the Euro is separate from joining the EU, though.
All countries that join the EU have to commit to joining the Euro in the future (unless they negotiate an opt-out like Denmark), but there’s no actual mechanism to force a country to make any progress towards joining. So you can fudge the issue like Sweden has and keep your old currency indefinitely
So the Euro is not an impediment to membership of the EU, but the wider currency question is an issue that will have to be resolved for indy to happen. I’d go into it further, but that would probably derail the thread even further.
That seems to be the state of play at the moment. About 3-4% of people who voted leave have flipped to remain, the rest are split between full-bore gung-ho isolationism and “this isn’t what I expected but I hope it’ll turn out ok”. There’s very little movement between leave and remain camps, because UK politics is so polarised and we’ve not seen the full impact of it yet.