There are a lot of personalities on a wedding day.

If the Mom of the Bride or the Mom of the Groom is a close part of the client relationship you should certainly consider them.

If their presence, expectations, or personality are going to significantly affect how you perform, that's worth factoring into the full situation.

It’s touchy for sure and I don’t want to you to be too selective, but having these conversations with your bride (in private) about “challenging people” will show her you genuinely care about her and the success of her day.