I think your bride friend was out of line in how she communicated to you. However I really understand that if she knows you are driving home late after the wedding, she is going to worry about your safety. I would too. Especially since weddings are parties that most often involve alcohol. It's a legit concern, and if you're prone to anxiety, it becomes big. Knowing the wedding guests are staying at the hotel would just give her peace of mind that everyone was safe and she didn't have to worry about her loved ones being in a horrible accident when she wants to be happy in the moment enjoying her wedding day/night. I can see my mind going there. If I knew someone was driving, I'd be noticing if they were drinking, and feeling responsible if they left my event not 100 percent sober to drive. Maybe she just wants everyone to have a good time. Maybe she wants to you feel free to enjoy some alcohol. Maybe she thinks you aren't interested in having as much fun if you're just looking to drive right home after. She doesn't want to worry about anyone getting into tragic car accidents on her wedding day. Does that make it fair for her to insist you stay at the hotel? No, you're right. You are an adult, you can take care of yourself make your own decisions. Hotels cost money, you've already invested a ton, and you don't live that far away. If you really feel strongly about going your own way after the wedding, I think you just have to spend some time reassuring your friend that you still plan to have a great time, and you will be one hundred percent safe, and make sure you do that.