Yes it is even though that begin doesnt have a fix value but it is a part of our life now. we never know before that this bitcoin will be very popular. but look bitcoin now it has a big value. bitcoin started from unknown and a small value but then now look how big the value of bitcoin. I know for the future it will goes up up and up...so we dont need to worry about because in the future we will gain more profit from bitcoin. it is clear from a small value to a big value. so for me it is safe to haven.
In this case they are actually not something to worry about because as you said, as long as you believe and keep waiting for sure something better will continue to come in Bitcoin but that doesn't mean this is something that is also safe in terms of price volatility because they really believe it is we must but we also have to be careful because with such a large price volatility it is clear that research and planning must always be there.