Currency failure generally occurs due to the type of hyperinflation, and there is always the potential for technical failure, currency competition, political issues and so on. As the main basic rule, there is no currency that can be considered very safe from failure and difficult times. so is it possible that bitcoin can become worthless?
in my opinion it's not possible because now only a lot of people have bitcoin. From the list of crypto money and also bitcoin at the top, maybe the price isn't stable, but there will be continuous improvements to make it better. And if for example bitcoin is not valuable, it will also affect other money to get the impact.