People have there only different desire and use of bitcoin. Some are just investors that see bitcoin as a good deal to invest there are money and make profit from sales others uses it for transcation purposes.
we really need bitcoin in modern world trade, some because we need bitcoin, one of which is by making payments using bitcoin in different countries of trade we will benefit in terms of ease of transactions, the payment process is not complicated, we will avoid the threat of inflation in the country's currency we are against the dollar that every year always happens, because the value of bitcoin everywhere is the same, it is very different from the existing currency, each country is different, we will avoid counterfeiting banknotes which are very common everywhere, because bitcoin cannot falsified, and most importantly bitcoin is global in nature can be used throughout the world, while the existing currency is local, can only be used in producing countries.