My great-grandmother has alzheimers. Most of the time she doesn't remember anyone. Sometimes she will even start cussing and screaming at her own children that she doesn't have children and they are lying. She doesn't like going places and always wants to leave family functions early. My grandmother keeps saying she's fine to come to the wedding. But I don't think she is. My grandmothers sister lives with my great-grandmother and she'd be the one to bring her. If she brought her then she'd most likely have to leave right after the ceremony. Which I know she'd like to stay for the reception. I hate to say don't bring her but I feel like that would be best. Should I just leave it alone and let her daughter bring her if they want or talk to them about my concerns?