Well, mostly people will say, it is because of the bad shape of the crypto market. They are not sure if it will keep going or it will just keep on crushing. But what is important is that there are still a lots of people that are keep on using and holding Bitcoin crypto currency.
Bitcoin has been volatile since it's inception and because it's unpredictable especially after a poor year 2018. i think it's normal to think twice before investing in it. It's different with the early adopters who are holding and have been enriched over the years but as a newbie i understand all the fears because you can buy it at a huge price today and loose big tomorrow.