Natural Ressources vs Money

Is it better to invest in land(for example) or in an investment account?
Some people who do have a saving account or a retirement account are happy and relieved because they will be able to live on their savings or retirement account when they will retire. But some of those people sometime doubt about the way they have chosen their investment, because if they were to die only those who are responsible of their investment account will benefit. Some people do not understand why one choose to invest in a bank rather that in natural resources, such as land that can be fertilize and give an indefinite revenue for those who owns it.
But shouldn't we invest both in natural resources and in investment account. Should that be wiser to have two different investments that could generate an income for the rest of our lives and even the next ten of our generation to come.
People tend to choose either to invest in natural resources or in investment bank because they are afraid of the unknown. What if I put my money in those investment account and I lose it all or what if I buy a land to fertilize it and I cannot sell what I have produce? Why don't we all ask ourselves; if I put my money in an investment account and have a return on investment that could change my life for everhow would I feel? or what don't I open a retirement account so that I could live on it when I would retire? or why don't I buy a land and fertilize it so that I can start my own business so that I will have not to live on a fix income when I am about to retire.
Investing in both natural and investment bank seem in my opinion the best way to go.
Imagine those people who live in the village who have worked hard on their land have saved enough to live a nice, happy life do you think they will ever bother opening an investment account. No they would not,they would tell you my investement is my land or my pigs, or my veals, why would I need to give my money to a stranger to care for it?
Or for those who live in that same village but work in small offices in the city have learn to invest and they would never want to put their money in such things as natural ressources. Why? They would say it is too tiring to care for those things, you have to worry every time about the weather, the insects that might destroy your plantation, it is too much work. Basically both parties have their reasons. But what if they were scared. Scared to give their most valuable thing in this world to a stranger What do you think?