Graduation sign is kind of more understanding as it’s one in a life time. Drive up parades are substitutes for real parties and events during pandemics. That’s understandable. Going from previous posts of yours your daughter is a lovely girl who doesn’t like to upset others. Perhaps she is ok with things against her nature just to please others.

My daughter is 32. We never had yard signs for her birthdays. She grew up well adjusted, but she also speaks her mind. Let your daughter to truly speak her mind and do things her way