If you do not have a steady source of income maybe investing be a good option. But if you have a steady source of income maybe saving is a pretty good option.
You are right and the suggestion is also making sense. That if one dont have a source for income and he/ she has enough amount to invest them he should not waste time on wounding for job or to keep your money in bank for a very short and slow benefit . so if you want to do really something great , you have to save money , but that saved money can never be enough for you future as you can increase your saving for future though investment . because investment expend money with the expectation of achieving a profit , getting worker to investing your money could helping in future . so investing is right for me .