Haven't talked it over with my honey, so I expect there would be some changes in details.
I'm guessing that out of $100M in winnings we end up with $33M.
I would set up a fund for my grandkids' education. $500K
I would set up another for their descendent's educations. $500K
Both would be limited to the cost of a public college or trade school education in their home state and they would have to keep their grades up to get the full amount. Cost would be limited to 5 full time year equivalents and would cover 90% of the costs. I think it's important for them to have skin in the game.
I would set up a fund to provide 1/2 median income for up to 5 years for post education business startup expenses. Used wisely this would make it feasible to start a business and keep it going for a few years until it's established or abandoned and unfeasible. The idea is to reinforce those who can be successful but not waste resources long term on those who will not be. $3M
I would buy out the crazy cat lady next door and hire a crew to gut that house, removing the cat-piss soaked (everything!) that must be in it, then restore it. You can smell the cat piss from the street or our yard. I would donate the house to be used by a battered woman's group and set up a fund to cover the upkeep costs. There's a win-win. $1M.
I would set up a $2M fund to purchase public art each year from local artists to adorn our town.
I would set up a crafts center with a functional metal, glass, pottery, wood and textile studios, plus quarters for resident artists. I would set up a fund to cover the basic annual expenses to staff and run it. Once that was established I would look at expanding it to cover 3d modeling and machinist training, plus set up a maker space and a business entrepreneurship center. The latter would be modeled after
https://www.popupbusinessschool.co.uk/ to help those will few to no resources start up their own businesses. 100% scholarships to those who are poor. $20M.
$1M to our son.
$2M to a trust for our mentally handicapped daughter, with ownership rights to any left over at her death to revert to my wife and I or our son and his descendents.
That's $30M.
That leaves $3M to invest in index funds for ourselves. An extra $120K at year at 4% is more than enough to let us do anything extra we would want without financial worry.
Anything more could go to education and trade school scholarships in our community.
I'm really curious to know if that kind of investment in a community with a population of 225K would make a measurable difference.
This would be expanding opportunity to a lot more folks. It only takes a couple of winners to transform an area economically.
If it worked over the next 30 years perhaps others would copy it and adapt it to their area.