First, check this video -
https://www.youtube.com/watch?v=vBX-KulgJ1o, it's a social experiment where the guy offers random people on the street to take a bet where they have a decent advantage, and almost all people refuse it.
They have a decent advantage on the reward but the risk factor is the same. There are still a possibility of losing $10 with the same amount of risk when they have to win only $10. If the guy offers the person 3x chance to win the money, it is a clear advantage, and mght probably take the chance.
Why? Because they don't know math and can't calculate that the expected value of such bet is big and positive. Instead they are being guided by psychology - human mind feels negative emotions more strongly than the positive, and negative memories are stronger than the positive. Fear of losing is stronger than the desire to profit.
From a person's point of view, if he is not a gambler he will not take the chance no matter how huge the reward is. You know we cannot apply risk management in this kind of game. the chance is random and there is no sure way or advantage of winning on the said video. It is still 50/50. So we cannot use math to increase our chances to win.
This is one of the reasons why Bitcoin adoption is so low. Everyone is aware of volatility, of big rallies and big crashes. Avoiding big risks is the default course of action for most people, even if big risks have positive expected value.
People are afraid of uncertainties, but investors and traders do calculations and see the risk and rewards. Besides Bitcoin and gambling as shown in the video are two different things. Investment isn't gambling if we know what we are, and why we are investing. We can apply risk management in our Bitcoin venture, we can adjust and readjust to get what result we desired, while in gambling we cannot do anything once the die is cast.