Eating versus investing is a very interesting and thought provoking topic.In our world, there exists a large population that toils day and night merely to feed enough food to their families. For them the concept of investment seems like an unattainable luxury. It is true that life survival is the foremost priority for all living creatures including humans. However, as human being, we should make conscious efforts to make savings out of whatever we earn, and invest it wisely to foster a hope for prosperous future for our families.
When you are hungry, you will not be able to think of anything else, and money and investments will be secondary. But there are also those who make good money but at the same time spend a lot on food and don't worry about saving and thinking about some kind of investment. All people are different, there are those for whom this is not at all important and such people live a moderate life, there is nothing wrong with that, everyone cannot be investors, especially not everyone will be a successful investor.
That is why others tend to invest when they are comfortable, like when they are not budgeting their money on food, because that is really the reason why you are earning money to have food on the table. If they have spare money, that is where they start investing. You are right, not everyone is successful in investment, but that doesn't mean that you will stop there now. Again, again you will need to fail multiple times before you'll be successful. Just don't surrender and continue to take calculated risks.