Is good to be diversified in your investment, somedays something good will come out of one you don't expect.
Sounds simple to say but actually, it's difficult for most people to do that because of lots of factors.
Difficulty in managing savings, financial stability, and lack of source of income - are only some of the reasons why people can't diversify their money into several investments or businesses. I understand that sentiment since I do feel the real experience being in that situation.