I have heard of two successful ways to start a business.
Some people just have to do what they are passionate about. They stick with it through down times because they love what they do, and eventually they become very successful.
Others are interested in business, and search for an opportunity they think they can make work. The actual product or service is less important than the business.
Both ways can work. Which one of these, if you think it applies, would catering be for you?