How did the partner's sister feel about breaking plates?

Choices:
A. Silly
B. Great
C. not enough information
D. Horrible
Horrible
My partner’s parents decided to help with all the planning and set up for his sister’s wedding. I am sure part of the reason was because they had offered to foot part of the expenses.
There came a point in the planning, when his mom seemed to sort of run-amok with her ideas. His sister ended up accepting some plans for her wedding that I don’t think she was really that fond of, but she went along with them anyways.
One of the things that stands out the most to me, was this idea that they would make a large wooden box with a hole in it, and people would smash their dinner plates into the box. Then the fragments of the broken plates would be put into metal keepsake tins for the guests to take home. (The tins were cute, the trash inside seemed very weird to me.)
So imagine it’s the evening of your wedding reception, and people are in a corner of the room smashing their plates into a box. And then part of your wedding party is supposed to go in the back and fix up the tins of broken ceramic ware. It was like an exercise in how to needlessly generate extra stress hormones in a large room full of people.
My partner’s sister looked like she cringed every time someone threw a plate in the box. It is weird (and wasteful) to propose to break brand new plates for a tradition that isn’t even part of your ancestry. It’s weird to railroad the people getting married into accepting to do things they don’t really want.
Soon after that, my partner’s mother offered that she would be happy to help us plan and throw our wedding too, just like they did for his sister.
I think the experience made us both content to elope.