I think, technology will continue to grow and every country will also continue to keep abreast of technological developments so I think blockchain technology will definitely be accepted and will be widely used in the future so we don't have to worry about the future of crypto currencies
Today the technology is growing, you see whether the market is difficult but there are still many ICO projects, so maybe the market will grow and grow, do not worry, there is no What to fear, be strong and welcome the new trend of electronic money.