I think that statement was more targeted at people who would be at financial risk if that money were lost. Presumably even if you, as a kid, lost that money in

I think that statement was more targeted at people who would be at financial risk if that money were lost. Presumably even if you, as a kid, lost that money in the market, you'd still have the support of your parents. However, for a low-income family with barely any money, it would be unwise to put your only savings in a single company instead of something more diversified like an index or mutual fund.