Some of the challenges are practical.
With no boss, it's easy to take too much time off and get too little work done.
With no co-workers, you might feel bored or lonely. You have to pay for your own benefits, like vacations, insurance, and a retirement plan.
And if you make a bad business decision, you could lose all the money that you invested.
For all of these reasons, more than half of all new businesses fail within one year