Gold is here from generations i think that's why they feel comfortable with gold and there is fact if there is no internet then there will be no bitcoin. People can keep Gold physically but Bitcoin is just a digital currency.
In the old tradition, gold is the best investment to make easy money but not fair to those who own with just as big as the grain of rice against the capitalist and that is a reality until this time. With bitcoin, u can earn as bigger as you can imagine with only a few hour in the internet with no sweat. However, the more time u spend the faster u become rich