because bitcoin is called to all people a coin and it has the highest price. a Bitcoin is the parent of all the crypto coins. and the Bitcoin also once passed through a lot of difficulties now and it has acted to survive again until the time comes a bitcoin. but after all the bitcoin will also rise from a crushing crises today and it will also be a success one day. and there are a lot of people who really want to invest in a bitcoin. and Its market today of bitcoin is always solid and successful. so do not worry. Just trust