It's essential to approach this situation with sensitivity and understanding. While attending the dinner the night before the wedding is a thoughtful gesture, it's understandable that as vegans, you may have concerns about the meal being served.
When deciding whether or not to attend, consider the following:
Relationship with the couple: If you have a close relationship with the couple, it might be worth explaining your dietary preferences politely.
Dietary requirements: If you have specific dietary needs due to health or ethical reasons, the couple should understand and respect your decision.
Communication: Communicate your reasons for not attending the dinner in a respectful and thoughtful manner. It's important to express your gratitude for the invitation while explaining your dietary choices.
Timing: Inform the couple well in advance about your decision so they can plan accordingly.
Offer alternative options: If you're unable to attend the dinner, offer to meet up with the couple for a vegan meal at another time to celebrate and spend time together.
In general, as long as you approach the situation with empathy and explain your decision politely, it should not be considered rude. Remember that the couple chose a vegan menu for the wedding events, so they might understand and appreciate your commitment to veganism.