why bitcoin is valuable, the answer is simple, bitcoin is the latest discovery that can be said to be a rare item but is very much interested in by all people, especially millennials who already know the world on digital, even millennials have made digital their true friend, bitcoin comes through in digital, and making money coffers through digital, so over time bitcoin is increasingly loved and admired, because bitcoin is part of digital..
^ The simplest answer is because of the demand and the supply, that's it.
BTC has no government backing and no system of intermediate banks to spread its adoption. What makes it valuable is that it allows people to store large quantities of their wealth, spend, transfer, and earn a lot of money out of investing time and effort where digital currency is possible and while the supply of the BTC is limited to 21 millions which is the more people will hoard the more BTC becomes expensive.
that's why many btc miners and much sought after by people from all countries which makes BTC valuable and high demand.that's what makes BTC decentralized even though its value is volatile but historically prices and charts will always increase high. BTC is also the highest coin that controls the price of all Altcoins, If BTC Bearish and Bullish all coin will be affected