Afraid in invest on bitcoin what reason they are afraid? Do you have any idea??
Yes ! These are some of the reasons why some are afraid to invest in bitcoin.
1.Hacking risk. On December 19, 2017, a South Korean cryptocurrency exchange said it would file for bankruptcy after it was hacked for the second time that year. Over $70m worth of bitcoins has reportedly been lost by several cryptocurrency exchanges and miners, highlighting concerns about the security of such currencies.
2.Hard fork" splits. Since the value of and support for the currency depend entirely on the community using it, disagreement between the stakeholders may result in the splitting of the network to support new competing cryptocurrencies, this is known as a "hard fork".
For example, Bitcoin Cash (BCH) is a hard fork from the original Bitcoin. Effectively, BCH is now a different cryptocurrency from the original bitcoin, inviting stakeholders to sell their "old" bitcoins and invest in this new one.