I wouldn't say that those factors are dangers of being a serial entrepreneur. But those are challenges that one has to take upon deciding they want to be an entrepreneur. It's not an easy path to be one but, once you succeed. You'll definitely feelng that you're one of the chosen few to take that route. It's time consuming because it is your business, it is your enterprise that you are building and not someone else's. At the beginning, you'll have to understand how your system works into your business until you can delegate that and when you're already profitable.
You’re right, these aren’t threats or dangers but these are the challenges that an entrepreneur must succeed so that success can be anticipated in the long run. In any attempt that we try to take path, it’s crucial to have focus and determination to gain full mastery, most especially if you are building a business, you need to work it out, you need to process everything in a positive way, and even do extended marketing so that you will know that your business has already reached a lot and has reached so far. With that, you aren’t just doing business within around you, but you are competing with the world’s business, even if you think that’s highly impossible.