I + p = P
As there are many thousands of restaurants in business today it is safe to assume it is a feasible and viable business.
When Your Questioning it...
Your coworker rejected the idea because they believed it was not feasible or practical.
To see if the business concept is feasible
Entrepreneur is someone who has an idea (or knows someone who has an idea) and invests his money into making a product or a business. They are willing to put their money into a situation where it can make money or lose money.
give him money give him money
More entrepreneurship start with an idea. By having an idea, the entrepreneur will then create a business plan in order to know how their business will run. Finally, once everything is organized, the person will register their business with the government to become fully known as a business.
The best thing to do if one had a good business venture idea would be to; develop the idea fully, create business plans, cash and sales forecasts, and how you are ging to make the idea work. After this, the best thing to do would be to make an appointment with a few venture capital companies, and then pitch your idea. Hopefully, if the company like your idea, they will invest, and your idea will become a reality.
According to me, business idea is considered to be very important. Without a business idea, one cannot start a business. If you want to run a successful business it is necessary to have a business idea.
Sometimes remaining local or regional is the only feasible alternative. For instance, if a business specializes in services that fit their specific community.
A business idea is important because it will help your company want to achieve something. If you do not have ideas, it is going to be almost impossible for the business to grow.
In business, we could say feasible, possible -- e.g. That's not a viable/feasible/possible solution. A modern but very informal alternative is doable -- meaning something which we can do.