Sounds good, a good use of money.
Another idea I have is to run a retreat somewhere remote and mountainous.
Money can buy time to study, which is difficult to squeeze in otherwise. Else, it's a long haul till the kids start managing their own lives
I've a degree in physics from over 40 years ago, from when all I can recall is being in a permanent purple haze day-dream - so I've recently started on an OU maths degree - so far so good, brain definitely needed something to crunch.