Invest because your money can grow up when time passes
You forgot that when some time passes there is also a chance that inflation might happen and thus by that time the interest that you earned from your investment will be nothing but dust instead.
and it can secure your good future
Investing doesnt mean that you are securing your future with because there is a risk to everything you do. Putting your money in the bank got some risk as well and it is a bogus mindset to think that you / your generation will be a billionaire by 100years from now if you are getting some investment
but savings accounts generally earn a lower return than investments.
approximately up to 7.5 % interest value and it depends on the digit that you are putting in as well as the timeframe for it, goes higher with the increasing timeframe though. Actually the interest seem fair considering it quite safe depending on the other type of risky investment