Newly engaged and when we told my future MIL that we're considering eloping. She's convinced that it's purely for monetary/pride reasons though, in truth, it's a matter of me (the bride) having anxiety about walking down the aisle with lots of people watching. She's hoping to change our mind and help us plan a wedding. How much say does she have? Can I say, "Thanks, but no thanks" or do I need to take into account her fixation with us having a "real wedding"?