First thing, bitcoin can't die overnight.
Second, people are getting crazy about all cryptocoins not only bitcoin so this trend might remain same if there will be no more bitcoin.
People are investing in bitcoin because it has limited supply and no any government can shutdown bitcoin network. People find it much safer to store their wealth in bitcoin than in their local banks.
I don't think so, when you are interested in earning money then you have to find out a proper way in order to make a profit. I believe Bitcoin is becoming a profitable currency and virtual capital tool which makes you rich and affluent in a short time. Although it requires a little bit risky but you need to do this for the sake of making money.
On the other hand, it's true that people are getting engaged in cryptocurrency market but I'm sure not all of the people are not fully aware of this platform that's why sometimes some people have lost their capital through this system. so that other person has been afraid of cryptocurrency in recent time.