My mom is convinced that everyone does a brunch and the groom's family is supposed to pay for it. But I don't see "brunch" listed on any of the who-pays-for-what lists, and I don't want to stick my new in laws with hosting a brunch (which they have never heard of doing for a wedding before) if it isn't something they have to host.
So I am figuring that a next-morning brunch isn't something that everyone does, but if it is done, what's the etiquette for who pays for it?