The answer is just simple, we all are cowards 
. Everyone will like to wake up one day and find out that Btc has reached 50,000. All these people are scared to invest hugely in bitcoin but want to become Crypto millionaire and Billionaire. You ask them why they are scared and they are like crypto is volatile and so on. This is the time to set the record straight make people realize what they are into. If you are scared then there is no need for you to join this amazing fraternity .
. Everyone will like to wake up one day and find out that Btc has reached 50,000. All these people are scared to invest hugely in bitcoin but want to become Crypto millionaire and Billionaire. You ask them why they are scared and they are like crypto is volatile and so on. This is the time to set the record straight make people realize what they are into. If you are scared then there is no need for you to join this amazing fraternity .In some way, you might be right. But what about the traditional securities investors? Are they cowards, too? Or do you believe they put all their eggs in the same basket? Doubt that
Consequently, I'd peg it as "prudence" rather than "cowardice."
On the other hand, what do you call a person who invests hugely in anything, including btc? Surely, you can call them courageous, but the other side of courage is very often the stupidity. As simple as that. Correct me if I'm wrong here.
What do you mean by investing hugely? If someone pours a few million dollars into bitcoin, does it count as huge? It looks like that, but what if these millions are basically pocket money for this investor? Would you call him courageous or is he in fact a coward for investing so small an amount? On the other hand, if someone invests all he has, all 5 grand of their life savings, are they courageous (stupid) beyond all measure? As I said before, the size of an investment, either in relative or absolute terms, in itself says next to nothing in this regard unless other things are specified and clarified.