It's not only about Bitcoin but also about many different assets. People tend to buy Bitcoin even though they don't understand cryptocurrenncies or they don't even bother to read about them. People panic right now because its price is constantly decreasing without any particular reason. Don't focus on the price, focus on the technology.
The true essense of bitcoin and it's system are not particularly in the terms of money, the real purpose of it is to have a much easiest, fastest and convenient ways of doing or making different transactions that can help to the people. Thus, to make bitcoin much useful and helpful to people it system can also use for investment where in people can earn a huge of money from it in just for a short period of time.
Just because there are also other purposes of bitcoin doesn't mean that the main purpose of bitcoin and blockchain technology will be forgotten. People only see what is the outer benefits of bitcoin and blockchain technology, maybe because of what they heard before entering or maybe influences, but for the better please do not forget also the other true purpose of blockchain and bitcoin.