It is 100% expected that you help set up and clean up the reception/ceremony. Because of this, I have helped put together every sibling, cousin and aunt wedding that has ever happened in my family. Also because of this, I will have a personal army to assist me with my wedding. It's actually kind of awesome to have this much help and all I have to do is help a teeny bit at every other wedding. I will have to do literally nothing on my wedding day to pay back all the work I did for everyone else. I will provide decorations and pictures, and the family will have it all done and I won't need to lift a finger. They would shoo me away and tell me to go get ready to marry FI. If you don't help at a wedding, you suck and everyone hates your for it.
If you mention the words "dry wedding" or "cash bar" they will set your eyebrows on fire and disown you. No free booze=no happy gagas.I know because I saw it happen. The disowning part, not the eyebrow part. The eyebrow part was an exaggeration, if you didn't realize.
I'm sure some of you guys will be all cute and not have psycho families that are polite.