It matters where lottery winners invest their wines the same that it matters where anyone would invest a large amount of money. That does not mean that the general public should get a say or that anyone else should know where they end up investing their money or what they end up doing with it.
Yes, it matters where lottery winners invest their winnings. Investing their money wisely can help lottery winners' families have money for generations. Furthermore, lottery winners can invest their money back into the community to help others. It is important for lottery winners not to just throw away their money just as it is important that businessmen do not throw away their money.
No, it does not matter where lottery winners invest their winnings because they have and should have complete control of their financial decisions. Lottery winners have found success in investing in real estate, stocks and bonds whereas other lottery winners have found security in saving their winnings in traditional banks.
No, once a lottery winner collects his or her winnings, it's up to him or her what's done with the money. It becomes general money like any other, and it can be invested in whatever the winner wants. So long as it's legal, there's not much that can be done to control where the money goes.