In my country, the government also believes that Bitcoin is a gambling game and a means of getting rich quickly and that is why they stopped trading in Nigeria even with this it doesn't stop people who have been into it to sell off their coin or their investment.
For me, it was never gambling rather, it was an opportunity to change our traditional financial system, where we always rely upon the banks to take care of our money instead of doing it alone. We never had this chance before where we fully control our money without any help from a third party and all we need to do is learn the basic things to protect and secure it. As for investment opportunity, that's only up to us if we want to earn and double our money because it's not obliged for you to trade your bitcoins from time to time rather, just to hold it and buy as much as you want with the money you can afford to lose.