Dear Queenie,
My sister and her fiancé have scheduled their wedding for the same weekend that I planned a family vacation.
Queenie, shouldn’t they have asked if that date was convenient before they picked it? Would it be all right if I asked them to pick another date?—Annoyed
Dear Annoyed,
Why? Did you ask them if that weekend was convenient for them before you planned your vacation? As you did when you scheduled your vacation, they chose a date that was right for them.
You can choose to change your plans and attend the wedding or go on vacation and miss it. You do not get to ask them to change their date to suit your convenience.