Stick to 1 thing and do it well, just keep enough to 1 side if say the US ban all trading or something stupid ( if your american ) land of the free and all that LOL There not far off with all there rules as is.
You made me laugh hard (land of the free comment--been trying to get my wife to move, now she has recently agreed to visit other countries, atleast thats a good step, we'll see how that works out), I get what you are saying, but we all have our method. You are right, but I believe in diversification, as long as I can get someone else (or group) to take care of running day to day investments, I'm free to trade but protected if the US does something stupid. Also I subscribe to Qwealth, if you like you can look it up (has nothing to do with trading but more directed to the "land of the free...." comment).
That has been my biggest fear the game changer, changing the rules at some future date. This is why I am trying to get licensed, to minimize the impact. Execute Plan B. this is why you should fall back on real estate or make other wise investment choices. So you don't have to rely solely on trading, however there is no better source of income.