If any individual is master/ talented in any skills (hobbies) and are ready to teach others with passion then he can easily convert his/ her hobbies into business idea.
For example, teaching piano lessons (any other instrumental classes), teaching cooking classes, or teaching another language, spoken English and personality classes, coaching classes, selling handmade confectioneries, bakery items, handmade handicrafts, own small restaurant, etc. Example: “Mahila Griha Udyog Lijjat Papad” hobbies converted into business.