Who says your grandma can not be part of your big day! This is one of the best ways to put a smile on their face. They love to help and be a part of your big day as much as possible! I think it would be a great gift for them. Bridesmaids do not need to be of a specific age and most of them will be happy to do it no matter what! I really think this is a nice gesture and hope that you consider this to be an option to share your happiness with your loved ones.

The smiles on their faces just show the gratitude and excitement on their granddaughters great day!