Great question, and the answer is yes! But: it's no harder than many other careers or aspirations in life. You need to have a personality that fits starting and owning a business.
Look up the traits that are needed for this online, and compare them to yourself to find out if you would enjoy the kind of work that goes with it. A business owner, at least in the
beginning, needs to have a lot of energy, and have the ability to "wear many hats", as they say. There is nothing you can't do if it is what you want!
Before this internet era, it used to be hard to start a business. Now you can start one in the privacy of your own house with no lease to sign or office to rent or employees to hire. I recently heard about Amazon FBA(Fulfilled By Amazon) from a pop up on the internet. I started reading and watching you tube videos about it and decide to give it a try. I converted my amazon account to a seller account by upgrading to paying $39.99 a month. I bought few products from online wholesale site and sent them to amazon following their instructions. Now I have a money making online business. It was that simple.