When you are a BM in an OOT wedding, do you feel obligated to attend the 'lunch' events the day before the wedding or do you just plan on getting there for the rehearsal and possibly the nail appointments a couple hours before?

I am going back and forth right now on this since making it to the lunch would mean taking a 6am flight that day with a connection. But I missed the shower and I will potentially miss the Bach party if it requires a flight and hotel so I have to consider that this is the only event I might end up attending. I am leaning towards sucking it up and taking the early flight, but it is soo tempting to book the more reasonable 9am flight!