All or most of the answers try to explain the matter from the angle of comparison between the two types of investment without taking into account the general situation of the investor per se. Today we have two types of investment, one in Bitcoin and the other in bank storage, with all the benefits and disadvantages of both. The most important question, in my estimation, is who is eligible to invest in bitcoin and who is eligible to invest in bank storage.
In a topic published yesterday, a member asked if he could invest half of his father's retirement money in Bitcoin, while his father intends to build a house after he was retired. This topic provides a vivid example to determine the eligibility of who can make this investment and of what kind?
Link to the topic : Dad's retirement money is invested in Bitcoin!

This is the most objective answer I've read on this thread that accurately answers the OP's question and sums up all the rest of the attempts to explain it since it doesn't take any personal stance. Greetings to its author