The person taking risk in this scenario is not even you, but that person that is saying you, but in business, there is always a risk, that is why when some people take loan for business, they always caution them to be very careful, it is better to start a business with personal savings or donations from friends and family around you, but if one can guarantee that the business is a viable one, then loan can be helpful to some extent.
Well, I think I'm more like a common man than an investor then. I prefer working for someone and earning my salary to taking loans for running my own business. I've seen so many people failed in opening their own business and ended up owing money while having no idea how to earn it, so I decided to not take those risks. Besides, no one can guarantee the viability of this or that business, that's what I know for sure.