Bank deposit will be secure your amount of money in the future and anytime once you want to get it you will get it for sure.
Gold and silver gives you high profit everyear and your income from them you can deposit it through bank.
Is gold really giving us big profits every year? because basically gold can't add to our wealth. but maintain our wealth from inflation. and also the interest profit from the bank is cut to the level of inflation, actually it is not so big. unless we are millionaires who invest in these instruments.