Only then people will use comfortably digital currencies, when the states will create all the conditions for their comfortable use. I think that this will not happen soon.
Actually it will depend on he individual. As the likes of me i do have a confort doing bitcoin investment from trading it with other crypto or just holding it in the digital wallet. The comfort will add up if you have also a good digital wallet and a local exchange which you are been used to do trading.
I think people will feel comfortable when the bitcoin become physically.We will able to protect it like we do with GOLD and Silver we can place them to any safe place where no one can reach there.