Like the correction a few days ago, bitcoin dropped more than 10% in just 1 day. If we needed money urgently that day, would we happily accept cutting losses? Meanwhile, with fiat, we will have no problems at all. The role of fiat is extremely important in our daily lives, don't try to deny its role.
But I wonder, how would we use bitcoin without the internet? If that can be done, why didn't Bangladeshi investors think of this when their internet was cut off for days?
The lack of internet worldwide will lead to a major collapse and it will affect not only bitcoin, so it should not be separated from the world economy in this matter. In any case, do not keep all your eggs in one basket, diversification is very important, this applies to investments and savings. Try to divide your funds into as many assets as you can, and part of the savings should always be available to you at any time, then you will be able to survive some temporary troubles with the lack of internet, electricity, or other possible collapses.
Internet shut down has never happened in our country but it’s highly possible. So always anticipate unexpected things to happen at some point.