Trying to be vague(ish).
Event coming up with a group of people. Always difficult to pin people down so on a rare occasion about a month ago where we were all together, a day was agreed for event. Arrangements always fall to one person, this person went ahead and got it all sorted out.
Now someone has something on at the time of the event, which was arranged after and wants event changed to suit and has told person who makes arrangements to change it (not asked btw). It won't work with everyone else. It was pointed out that it was difficult enough to arrange in the beginning and they are the one that double booked but nope, they want it changed. Then someone else also says they want it changed because there is something on around even time that will prevent them from drinking.
This event is arranged to coincide with something else, everyone enjoys it and it is something we always do. When it was pointed out that changing it would mean we lose the reason the event coincides with (why we have this event) person who wants it changed just said it doesn't matter, it just won't be 'special occasion' event then.
Now in a group, I'm not sure it's fair for that person to decide this when everyone else will want the usual arrangements. So far the wider group isn't aware and won't be able to change event date to coincide with our usual occasion at all, this was the only date.
AIBU to leave it as it is? I'm planning on bringing it up obviously, it's not for me to decide but I have a feeling what everyone else will say.