One of the best ways to understand if your business or new service / product might work or not is to spend some time conducting accurate market research.
Market research helps to determine:
Whether you are providing something that is wanted/needed?
How much your customers would be prepared to pay?
Where and how potential customers would prefer to buy?
Who is most likely to buy from you - Women, Men? Younger or Older people?
Is your product / service more adapted to specific demographics, regions?