To begin with, theres no such thing as completely safe in the investing world. Whether its Bitcoin, stocks or any other asset, I dont think safe is the right word to use.
Yep, the investment is always a risk, the word safe is not right, the important thing is how we store the asset with higher security, especially in the case of Cold cards, many people panic.
For me, holding Bitcoin is a better option than many other assets. Of course its still risky because of the volatility, but it has already proven many times that over the long term the price can recover and continue higher.
You just need to understand the risk and avoid panic selling. If you cannot handle big price swings, then maybe Bitcoin is not for you.
This has been an experience for any investor, high volatility there are still many people who can't get through it, sometimes become excessive panic, or impatient in waiting for a long time, take for example bearish now it's been a long time, but some survive some sell.
There is a saying: a strong hand will be the winner, I think those who hold bitcoin should have a strong hand.