For me it is better to save money because if you are going to save a lot of money for sure you are going to have a purpose to invest.
But if you are going to invest money and you don't have savings then that is going to be a problem after all.
Because you don't have back up funds for your investment if ever it is going to fall.
I agree with you but only for those people who have a lesser income, while those people who have a bigger income they should not have to wait any longer and have to invest whenever they get their money, as with investment he will be able to earn more and will be able to increase his income more.