can one make millionaires out of adult children, relative etc without them having huge tax problems/
Too bad Fred Trump isn’t still around to advise on that!
;-)
Claim the winnings through a trust with any children or relatives having shares in it. The tax implications will be taken care of through the trust, then any distributions can be set up as interest free loans with no fixed repayment schedule (actually no expectation of repayment at all if you get right down to it), etcetera. That’s how our political class plays that game. If your morals and scruples don’t permit that sort of behavior, then there will be ongoing tax implications with distributions, as far as any interest, dividends or other taxable income generated by the trust.