Safer than many if not all the world currencies you can think of, infact the global economy crisis and uncertainty only increases the popularity of Bitcoin because it is seen as a safe space for people avoiding inflation and the drop in their local currency.

If an investor finds Bitcoin daily fluctuation frustrating then they should give up on investment and just hold their funds in a fixed entity. Every investor already knows their will be fluctuation and it's been a while I can say Bitcoin actually frustrated anyone. You should just need to work on your expectations.