Every good thing has side effects, I believed bitcoin ha play roles of changing lives and improving digital structural economy. But bitcoin also has negative damnation on lives by impoverishing people of their spare resource and income.
That is why everyone who is interested in Bitcoin should learn the basics about security, how transactions work, how to manage a wallet, and of course about investment strategy which must be always focused on long term goals, since we can't predict Bitcoin price on short run precisely.
Since many investors want fast profit, they claim to have lost money with BTC. But that was actually their fault for not having held their coins for longer.