No two causal weddings are alike. Groomsmen in jeans, your puppy as the ring bearer, casual weddings hold a lot of charm for the bride and groom and their guests. Casual weddings usually have no set theme, making them feel like the most authentic to the bride and groom. Some have a taco truck instead of a sit-down meal, others are barbeques in the park. Casual weddings are all about celebrating you and your love.