Americans starting new businesses is at a 40 year low. The biggest factor is the maturity of the nation and economy. Everything seems covered. It used to be that you could look around and see what the area needs and start a business with little or no competition. Now they don’t need another dry cleaner in town, or another Thai restaurant.
There are, of course, lots of opportunities in new technologies and holes to fill there, but even those are getting filled up pretty quickly. New businesses create jobs and business for other businesses and for an economy to be strong we need a healthy number of new business startups. Start a business, support a new business, eliminate a regulation if you can. Every little bit helps.