People will stop with Bitcoin if they think that they cant earn some profit with it, or if they lost a lot of money with it and that is really bad, the people that is stopping so early dont have patience and that is not good.
To make some profit with Bitcoin is patience a really important role in Bitcoin, without patience you cant make profit with it.
There are some people who are suing bitcoin as a normal currency and are getting benefited with the more opportunities of online earning with bitcoin, so they will not leave because of that reason.