It also depends on the financial situation for some of your bridal party. My sister was BM for a friend a couple of years ago when she was a student, the whole thing, including going on a very swish hen weekend away, ended up sending her in to credit card debt that my Dad had to lend her to pay off. She stayed in the v expensive hotel on the night of the wedding, but the night before and the night after(which the bride insisted she be around for) she headed down the road to a b&b alone while the rest of the party (all making good money at the time) stayed on. Her friend also insisted they contribute to their dresses and pay for their shoes, which she picked that cost €400
and not ones my sis would ever wear again. I had her on the phone to me crying about 20 times in the lead up to it. I was only a BM once for my older sister yeeeears ago and my Mum bought our outfits/shoes and bridal party rooms were paid for (I was young and oblivious, still don't know who I should have thanked, was thanking everyone!!) so I don't know what the normal protocol is. We're not having a bridal party so phew that I don't have to go finding this stuff out. Sounds like expensive times!