As are the disadvantages as evidenced by all the ransoms paid in crypto, these ransoms are also evidence that the security required to keep your crypto secure isn't exactly all that common in some of the market segments the crytpo companies are trying to reach.
You can currently take physical possession of commodities including all the precious medals, one doesn't have to allow their stock certs to be help by others, cash and other such methods still work but most people chose to let middlemen do it for them, just like most people do for Crypto judging by the market valuations of some of those companies.
The main point of crypto these days appears to be to replace the current middlemen with different middlemen who can make more profit while offering the consumer much less legal protection.
I am not sure they could have added more white space to the new Twitter if they tried. I would not kill them to adapt to the amount of screen real estate that I have.