Your parents are engaging in emotional blackmail. They are treating you like a child and their "gift" is not a gift at all, it's a leash. This wedding is not about their friends or family who have supported you over the years -- people do that because they love you, not because they expect to be rewarded for it. Your parents are worrying more about what people will say than worrying about their daughter's happiness. If you give in to them, don't expect this type of behaviour to change as you will have conditioned them to keep you in line by bullying you. Even though they're your parents and you love them despite their faults, you are your own person and you have your own life. Go ahead and plan the wedding you want and they will probably come around as they will have no choice, otherwise, "what will people say"