I agree that they do spend more time bonding with the BMs (bridesmaids) than the groom.
Alert: Stereotype :Alert
Most women have been planning their wedding since they were little girls and know exactly what they want when it finally is happening. The other female BMs are more keen on...
They don't really have to do anything. Hopefully they are there for any concerns or questions you have and make sure to include the moms in dress shopping and cake tasting b/c I think they would enjoy that.