Bitcoin unfortunatly can't solve worlds problem because money is not everything nowadays. Many governments looking for a bright future in other sources like natural resources and new terretories.
The problem in this world is all about money for daily expenses, we can't survive in the community without money because this is the way to buy foods and everything needed everyday. As a human we need to support economy growth and solve the problem like our lack of source of income.
Every nation has a common problem specially in terms of money and here comes the cryptocurrencies that brought many opportunity. Bitcoin is the top cryptocurrency which gives more profits in our investment. I can say that Bitcoin cannot totally solve the problem of the world, but it can be a big help to everyone to do any transaction in an easy way with a lesser fees and earn money from it.