Bitcoins do not have value as a physical commodity like gold and are not widely accepted as legal tender like dollars. Rather, Bitcoin appears to have value for the following reasons:

It is popular. In short, people accept and trade in Bitcoin because other people accept and trade in Bitcoin. It is recognized and accepted as a currency by many.

Bitcoin is decentralized and limited. This is a major factor for many Bitcoin users. Bitcoin is hard for governments to trace and tax. Also, unlike fiat money produced by central banks, there is a cap set on total Bitcoins, limiting how much the currency can devalue through inflation.

Bitcoin acts like an equity investment. The market value of Bitcoins has had wild swings in value and even a market cap.

Bitcoin is a social network. The Bitcoin "community" is active and acts like other online social networks.

Everything can be manipulated so the bitcoin market will be no exception to that. It is not easy but just notice how the bitcoin price can go up and down when news is released. Investors, companies or whoever can publish fake news to influence the bitcoin market. Good news will increase the price of the bitcoin and negative news (like a country banning or taking measures against bitcoins) will result in a price drop... Also dumping a lot of bitcoins at the same time, or buy heaps can influence the market of course but you will need lots and lots of money before you can achieve that. So manipulating the market can be done but it is not always that easy

Can we raise finance from Bitcoin fast? I want to start up a business, but my finance is limited.