You can mine monero but you can also buy it on just about every exchange. There are probably faucets somewhere too but those are generally not worthwhile.
Better to buy more in exchanger than mining.
We know monero is potential coin for private transaction.
But I don't know what about the future of private coin.
I think If you need monero, buy and do transaction in monero if you want do private transaction.
If you want to invest in Monero, It depends on your confidence.
If you confident you can do it. Good luck