I want to make a short story about an Earth just like ours, except it's commonly accepted that at the age of 43, the government allows people to have a llama in their house. The government pays for the llama and the food during that year and that year only. Most people just have a Llama day where they spend a day with a llama, totally government-funded, then go back to everyday life. Others prepare and spend the whole year with a llama and have rad experiences.
Obviously, this is ridiculous, but I want a reason why everyone would be more or less fine with this and somehow keep Earth relatively the same in terms of social norms, religion, wealth distribution, etc.