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That means there is nothing to worry about and that's how Bitcoin runs on the market, the level of rationality depends on the opportunities you get. Although Bitcoin is one of the best investments if not invested properly bitcoin will not provide a level of rationality for themselves for us.
The most rational approach in my opinion is, invest only the amount you can afford to lose. That's pretty wise for any investment asset. They may be worried about the future, but bitcoin has a good future based on the foundation it has built among its community so far.
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There is nothing to worry about Bitcoin in the long run because Bitcoin has shown a fundamental level that is not possessed by other coins. We have also seen how Bitcoin can have an impact to reach the stage of financial freedom if invested correctly. Not being panicked you will get if you have gained knowledge about investment correctly because if you make a mistake then you will get unnecessary losses.
It is important to make wise decisions when you want to be involved in investment and most importantly can be responsible for the decisions taken. Risks can never be separated in investment in Bitcoin, but we can minimize these risks if you have correct knowledge about investment.
I'm not forbidding anyone from worrying about the future, but I personally wouldn't worry too much considering what bitcoin has achieved so far. Bitcoin has become known globally even though not everyone invests in it, but it is a strong foundation for bitcoin and its future despite the price volatility of each cycle.
Risk always exists for any investment asset, but risk tolerance still needs to be considered wisely. Don't invest all your budget in bitcoin, I mean you still need to have a reserve budget for other important things. Bitcoin does not guarantee the future, but it has a good future because we will probably find that millions of people have lost faith in the centralized financial system.