Hey, my mom, who is a JW, went to my son's performance in the Messiah a few Christmases ago. My JW mom did. I think it is the most holiday'd thing she has EVER done, but she did it for her grandkid who was singing a solo in a professional choir (yes, I am bragging about it years later, ok? I acknowledge it!) . My point? It is to say that your kid's generation may eventually get your parents to do things that they would NEVER do for you. They may be able to do things for them that they would never allow you to do. It might not really change their world, but you never know. My mom saw one beautiful Christmas concert one time in her life and I know she was moved by it, in spite of her best efforts.
I did not have a single twinge that night, btw. My son invited her and she chose to join us.