It's volatile if you are making short-term trades. But yes, those who believes that the value of one thing will grow in the future means they are not believing about the volatility at all. But it will take a lot of patience and I believe those who waited up until now are very brave to keep their hands tied and not pressing the sell button.
To me the time of predictions whether Bitcoin to be successful or not is a waste of time, energy and effort. The period of predictions should've been some couple of years ago like during 2009 to 2012 when the outcome was still shaky, now the results are extraordinary and no more predictions again when it's 15 years old today already
When it comes to predictions, it's an individual thing in my opinion. You can make one but don't assume it can come true. Still, there are coins out there which was believed to have a great future and yet they are like leaves plucked one by one out of the market.
Lol
Some people predicted that Bitcoin will fade away by today, that's actually failed predictions, no one knows the end of anything.