Explain how difficult it is to “break even,” let alone profit. Tell him to start off with a mythical $500 and place bets every day in the Selections forum here. Buy him all the forms, sheets and charts he wants. It is a good math exercise and, at least, he may learn odds, percentages, probabilities, etc.
Much better losing play money than real money. And hey, if he turns out to be a handicapping prodigy, maybe he'll buy you a vacation home near gulfstream.