If you want to be a successful entrepreneur?, never settle for one class/type/mode business only. For there is no assurance of its long term stability. I would advise... If you have a minimal amount of funds better invest it in BTC increase its profitability, you can search on some ways here in the forum. And after sometime of accumulating funds, then better invest in Gold or any type of Profitable Business preferably that produces passive income. Real Estate would be better though. In my country Real Estate is still the best income generating asset, Providing products and services is next..
Real estate?? Dude, have you not watched the Big Short?!?
Lol, but really, I understand what you are saying here... but I don't really trust the real estate market that much, and will only invest in assets that provide some utility and serves as a store of value, such as silver and gold, along with crypto currencies. Real estate works if you get lucky with a piece of land that is very unknown and you know of something that is going to cause more people to travel and want to move to that place...