I wonder about buying houses for your family, how that would work out. What if a year afterward, you hear, "oh I need some more money for taxes, or I will lose the house." Are you going to give them more, or let them lose it?
In other words are you creating a new set of dependents? How are you going to refuse when they know you have all that money? You will seem like a piker if you don't break them off another couple of thousand to pay the taxes.
I don't play the lottery, but if I got extra money I would donate to humanitarian organizations like Doctors Without Borders. Anything I or my family might want or need pales in comparison with children starving to death.